The dinuclear RuII complex [(Ru(phen)2)2(tpphz)]4+ binds to G-actin monomers, preventing assembly into F-actin. This inhibits actin fibre assemblies within live cells and causes disruption to late cytokinesis by interfering with the function of endosomal sorting complexes required for transport (ESCRT) during abscission. These results reveal new possibilities for metal complexes as biomedical tools and novel therapeutic leads.
[Communications]
Dr. Martin R. Gill, Dr. Paul J. Jarman, Dr. Vanessa Hearnden, Dr. Simon D Fairbanks, Dr. Marcella Bassetto, Dr. John Palmer, Prof. Kathryn R. Ayscough, Prof. Jim A. Thomas, Prof. Carl Smythe
Angewandte Chemie International Edition, https://doi.org/10.1002/anie.202117449. Read article.
HMF hydroconversion: 5-hydroxymethylfurfural (HMF) is a biobased platform compound that can be effectively transformed into a variety of value-added derivatives. This Review highlights recent advances in heterogeneous catalytic hydroconversion of HMF to 2,5-bishydroxymethyl furan (BHMF), 2,5-bishydroxymethyltetrahydrofuran (BHMTHF), and 2,5-dimethyltetrahydrofuran (DMTHF), while discussing multifunctional catalytic systems and highlighting the impact of HMF purity on the catalytic performance.
[Reviews]
Aleksei A. Turkin, Dr. Ekaterina V. Makshina, Prof. Dr. Bert F. Sels
ChemSusChem, https://doi.org/10.1002/cssc.202200412. Read article.
The Brønsted basic properties of diphenylberyllium have been used to cleanly produce a range of important benchmark compounds. The long-suspected structure of [Be3(OtBu)6] is finally verified, and shown to be static in solution; the NHC-stabilised beryllium Grignard is the first of its kind. The stark differences between Be−N and Be−P interactions are also evidenced here.
[Research Articles]
Dr. Lewis R. Thomas-Hargreaves, Chantsalmaa Berthold, William Augustinov, Dr. Matthias Müller, Dr. Sergei I. Ivlev, Dr. Magnus R. Buchner
Chemistry – A European Journal, https://doi.org/10.1002/chem.202200851. Read article.
A guide to the chemist's toolbox for the stimulation of invariant natural killer (iNKT) cells. This Review encompasses the synthetic strategies for the preparation of the iNKT cell agonist α-galactosylceramide (αGalCer), its TH1/TH2 skewing analogs, and other synthetic probes for the elucidation of mechanisms of αGalCer trafficking.
[Reviews]
Dr. Cecilia Romanò, Prof. Mads H. Clausen
European Journal of Organic Chemistry, https://doi.org/10.1002/ejoc.202200246. Read article.
Herein, we fabricated a novel porous SiOx/C nanohybrids, in which carbon and SiOx not only exhibited uniform distribution at the nanoscale, the stability of SiOx/C network can also be easily adjusted via controlling the hydrolysis and condensation rate of precursors in situ. Benefiting from the unique network structure and excellent structural stability, the SiOx/C(50) shows excellent electrochemical performance in LIBs.
[Research Articles]
Yang Ling, Yuan Gao, Yan Peng, Prof. Shiyou Guan
Chemistry – An Asian Journal, https://doi.org/10.1002/asia.202200202. Read article.
Control of solid-state isomerization equilibrium: The prepared conformer mixture powders of bianthrone converged into different conformer crystals upon heating, depending on the length of the introduced alkyl chains. The conformational isomerization equilibrium of bianthrone in the solid-state was controlled by the hydrophobic dispersion interaction derived from the alkyl chains.
[Research Articles]
Dr. Yasukazu Hirao, Yosuke Hamamoto, Prof. Dr. Takashi Kubo
Chemistry – An Asian Journal, https://doi.org/10.1002/asia.202200121. Read article.
Sustainable organic afterglow room-temperature phosphorescence (RTP) with long lifetime is a particularly attractive phenomenon but remains difficult to achieve. Here, we prepared sustainable afterglow RTP materials (GA@SA) with a lifetime up to 934.7 ms by embedding gallic acid (GA) within a Ca2+-crosslinked sodium alginate (SA) matrix.
[Research Articles]
Keliang Wan, Yingxiang Zhai, Shouxin Liu, Jian Li, Shujun Li, Bernd Strehmel, Zhijun Chen, Tony D. James
Angewandte Chemie International Edition, https://doi.org/10.1002/anie.202202760. Read article.
Four novel [OSSO]-based-Cr(III) complexes (2-5) were synthesized and characterized. Their catalytic activity was investigated in CO2/epoxide coupling reaction in the presence of PPNCl as co-catalyst. Among the reported complexes, catalyst 2 showed the best catalytic activity in the exclusive formation of polycarbonates (PPC, PCHC, PVCH, and PHC) with a selectivity of 83 % and more in all cases.
[Research Articles]
Fatemeh Niknam, Dr. Vito Capaccio, Magdalena Kleybolte, Dr. David H. Lamparelli, Dr. Malte Winnacker, Prof. Dr. Giulia Fiorani, Prof. Carmine Capacchione
ChemPlusChem, https://doi.org/10.1002/cplu.202200038. Read article.
Selectivity drivers: We report in-depth details about the binding modes of a series of alkoxy-containing ureido benzenesulfonamides within human carbonic anhydrase II and IX isoform mimics. These were used as orthosteric probes to decipher the structural determinants responsible for driving isoform selectivity.
[Research Articles]
Dr. Murat Bozdag, Dr. Lochlin Cravey, Dr. Jacob Combs, Dr. Anusha Kota, Prof. Robert McKenna, Dr. Andrea Angeli, Prof. Silvia Selleri, Dr. Fabrizio Carta, Prof. Claudiu T. Supuran
ChemMedChem, https://doi.org/10.1002/cmdc.202200148. Read article.
The in silico adsorption of 53 cyclic scaffolds to the fastest-growing (001) face of a β-hematin crystal identified the phenoxazine scaffold for further derivatization. A small library of 2- and 3-substituted amino-phenoxazine compounds with predicted β-hematin inhibitory activity were synthesized. P2a shows the most promising β-hematin inhibition and antiplasmodium activity.
[Research Articles]
Dr. Tania Olivier, Dr. Leigh Loots, Michélle Kok, Dr. Marianne de Villiers, Dr. Janette Reader, Prof. Lyn-Marié Birkholtz, Prof. Gareth E. Arnott, Dr. Katherine A. de Villiers
ChemMedChem, https://doi.org/10.1002/cmdc.202200139. Read article.
Pinning down potency and selectivity: Direct-binding experiments allowed the identification of methylacetyl-l-alanyl-l-histidyl-l-prolyl-l-phenylalaninate (5 k) as a potent Pin1 ligand that binds Pin1 with higher affinity than Pin4. Comparative analysis of molecular models of Pin1 and Pin4 with the selected compound explained the biochemical activity and pinpointed the chemical elements that may further improve the potency and selectivity of future peptide-based parvulin inhibitors.
[Research Articles]
Dr. Nicola Relitti, Dr. A. Prasanth Saraswati, Dr. Gabriele Carullo, Alessandro Papa, Dr. Alessandra Monti, Dr. Rosaria Benedetti, Eugenia Passaro, Prof. Simone Brogi, Prof. Vincenzo Calderone, Prof. Stefania Butini, Prof. Sandra Gemma, Prof. Lucia Altucci, Prof. Giuseppe Campiani, Dr. Nunzianna Doti
ChemMedChem, https://doi.org/10.1002/cmdc.202200050. Read article.
Photo-thermal catalyst Ni/TiO2 provides significantly increased CO and CO2 conversion under light irradiation. Photoinduced charge carriers on the surfaces of the Ni/TiO2 catalyst enhance the formation of intermediate species, reduce the activation energy barrier required for the reaction and advance performance of CO/CO2 methanation.
[Research Articles]
Yangyang Li, Zhiqiang Rao, Zhisong Liu, Junming Zeng, Wentao Bao, Prof. Zijun Wang, Jiangbing Li, Prof. Feng Yu, Prof. Bin Dai, Prof. Ying Zhou
ChemCatChem, https://doi.org/10.1002/cctc.202200182. Read article.
Nanocomposites composed of a zirconium-based metal-organic framework (MOF) grown on carbon nanotubes (CNT) are subjected to the installation of spatially dispersed iridium sites within the MOF for electrocatalytic oxygen evolution. By utilizing the redox-hopping pathways to transport electrons within MOF and the electronic conduction between MOF crystals provided by CNT, the nanocomposite can outperform both the Ir-functionalized MOF and CNT.
[Research Articles]
Tzu-En Chang, Cheng-Hsun Chuang, Yu-Hsiu Chen, Yi-Ching Wang, Yu-Juan Gu, Prof. Chung-Wei Kung
ChemCatChem, https://doi.org/10.1002/cctc.202200199. Read article.
Multiple modifications (X) are tolerated at the ribofuranosyl 5-position in neomycin B and the apralogs, but only amine-based derivatives are active in the paromomycins, propylamycins and ribostamycins. This is discussed in terms of total amino group count and the ring 1 functionality, amino or hydroxy, with amino groups at the 6’- and 7’-positions in the neomycins and apralogs conferring greater flexibility.
[Research Articles]
Dr. Jonathan C. K. Quirke, Dr. Girish C. Sati, Prof. Dr. Amr Sonousi, Marina Gysin, Klara Haldimann, Prof. Dr. Erik C. Böttger, Prof. Dr. Andrea Vasella, Dr. Sven N. Hobbie, Prof. Dr. David Crich
ChemMedChem, https://doi.org/10.1002/cmdc.202200120. Read article.
Selective oxidation: This Review focuses on the recent approaches in developing new pathways for selective oxidation of biomass-based 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF). The reactions mediated by various homogeneous and heterogeneous catalysts in organic and aqueous solvents proceed under air, oxygen, or peroxide as oxidants. The Review provides new insight into exploring strategies to enhance the oxidation of HMF into DFF for future research.
[Reviews]
Prof. Phuong Hoang Tran
ChemSusChem, https://doi.org/10.1002/cssc.202200220. Read article.
Amphiphiles: In the last decade, 5-hydroxymethylfurfural (HMF) has been considered as a starting material for designing biobased surfactants, not only because of its renewability and carbon footprint, but also because of its enhanced biodegradability. This Review summarizes recent examples of different approaches to provide new highly biodegradable biobased amphiphiles starting from HMF and its derivatives, which have been classified according to the charge of the head polar group.
[Reviews]
Dr. Alexandra Velty, Prof. Sara Iborra, Prof. Avelino Corma
ChemSusChem, https://doi.org/10.1002/cssc.202200181. Read article.
PVP stats: Based on the characteristics of polyvinylpyrrolidone (PVP) and the ion transport mechanism of different electrochemical devices, this Review summarizes the application status of PVP-based polymer electrolyte membranes (PEMs) in polyelectrolyte membrane fuel cells, vanadium redox flow batteries, and alkaline water electrolysis, providing guidance for the development and application of high-performance PVP-based PEMs.
[Reviews]
Wen Li, Prof. Haining Wang, Prof. Jin Zhang, Prof. Yan Xiang, Prof. Shanfu Lu
ChemSusChem, https://doi.org/10.1002/cssc.202200071. Read article.
Representation of the stepwise approach for oxidation of HMF-acetal to FDCA, with efficient recycling of the 1,3-propanediol protective agent.
[Research Articles]
Dr. Jan J. Wiesfeld, Miyuki Asakawa, Dr. Takayuki Aoshima, Prof. Atsushi Fukuoka, Prof. Emiel J. M. Hensen, Prof. Kiyotaka Nakajima
ChemCatChem, https://doi.org/10.1002/cctc.202200191. Read article.
Being mesoionic makes the difference: A diselenolene ligand with fundamentally different electronic properties compared to a normal diselenolene is reported. Two stable redox states are accessible: a paramagnetic radical dianion and a diamagnetic monoanion. The ligand was used for the preparation of novel aluminum bis- and tris(diselenolene) complexes.
[Research Articles]
Dr. Zhaowen Dong, Dr. Andrzej Sienkiewicz, Dr. Abdusalom A. Suleymanov, Cesare Berton, Dr. Farzaneh Fadaei-Tirani, Dr. Rosario Scopelliti, Prof. Kay Severin
Chemistry – A European Journal, https://doi.org/10.1002/chem.202200893. Read article.
We developed o-carborane as a new mechanophore that possesses an unexpected combination of force-free stability and force-coupled activity. By contrast, m-carborane, which has a different regiochemistry maintained its high mechanical stability. This fundamental research straightforwardly presents new insights into the remarkable “expandability of the C−C covalent bond” in o-carborane by applying external force stimuli.
[Communications]
Prof. Ye Sha, Zhou Zhou, Miao Zhu, Prof. Zhenyang Luo, Dr. Enhua Xu, Prof. Xiang Li, Prof. Hong Yan
Angewandte Chemie International Edition, https://doi.org/10.1002/anie.202203169. Read article.
Charge-state dependent “on-off” molecular photo-switches are of present interest for novel optoelectronics. We have used mass-selective ion beam deposition into solid Ne at 5 K to compare the spectral properties of vanadyl phthalocyanine (VOPc⋅) with its singly charged cation. Electron detachment from VOPc⋅ leads to a diradical cation (VOPc+..) which shows profound NIR photoluminescence. By contrast, VOPc⋅ is essentially non-emissive.
[Research Articles]
Dr. Sreekanta Debnath, Dr. Karolina A. Haupa, Dr. Sergei Lebedkin, Dr. Dmitry Strelnikov, Prof. Dr. Manfred M. Kappes
Angewandte Chemie International Edition, https://doi.org/10.1002/anie.202201577. Read article.
Making compartments: A method for generating mm-scale multicellular lipid membrane compartments is reported. Water-soluble substances can be encapsulated in the structure. This method provides a new chassis design for studying molecular communication by using artificial cells.
[Research Articles]
Prof. Shin-ichiro M. Nomura, Ryo Shimizu, Dr. Richard James Archer, Dr. Gen Hayase, Prof. Taro Toyota, Prof. Richard Mayne, Prof. Andrew Adamatzky
ChemSystemsChem, https://doi.org/10.1002/syst.202200006. Read article.
This Review highlights the recent progress of the application of enzymatic noncovalent synthesis (ENS) of peptide assemblies for targeting subcellular organelles, including the generation of artificial filaments in cytosol, targeting endoplasmic reticulum, mitochondria, Golgi apparatus, lysosomes, and nucleus. The Review aims to illustrate the promise of ENS as a localized molecular process in an open system, for understanding diseases, controlling cell behaviors, and developing new therapeutics.
[Reviews]
Qiuxin Zhang, Weiyi Tan, Prof. Dr. Bing Xu
ChemPlusChem 2022, 87, 0. Read article.
Two types of DNA aptamers of uric acid (UA) were selected with a Kd around 1.2 μM, one of which shows better discrimination against xanthine. The binding of UA involves three Na+ ions, which cannot be replaced by Li+ or K+. A fluorescence biosensor was designed with a limit of detection of 90 nM UA in buffer and 350 nM UA in simulated tears.
[Research Articles]
Dr. Yibo Liu, Prof. Juewen Liu
Analysis & Sensing, https://doi.org/10.1002/anse.202200010. Read article.
Self-sorting or co-assembly? The control over the network type in multicomponent gels can be achieved either by varying the hydrophobicity of a component or by changing the preparative pathway.
[Research Articles]
Dr. Santanu Panja, Dr. Bart Dietrich, Dr. Andrew J. Smith, Dr. Annela Seddon, Prof. Dave J. Adams
ChemSystemsChem, https://doi.org/10.1002/syst.202200008. Read article.
Orthogonalization of components inhibits efficient packing, whether of bagels or polyaryl linkers in metal-organic frameworks (MOFs). This strategy was applied to polyphosphonate linkers to generate six new MOF structures (CALF-35 to -39). Ba, Sr, Mg, Zn and two Ca structures were obtained from a new trigonal linker with orthogonal peripheral aryl rings to inhibit efficient packing. The structures are discussed considering their porosity, stability and selective sorption of gases.
[Research Articles]
Martin Glavinović, Justin H. Perras, Dr. Benjamin S. Gelfand, Dr. Jian-Bin Lin, Prof. George K. H. Shimizu
Chemistry – A European Journal, https://doi.org/10.1002/chem.202200874. Read article.
Computational and experimental approaches can complement each other in the study of chemical reactivity. This review compiles the works where both approaches were used to elucidate the mechanism of the photochemical reduction of CO2 to CO catalysed by transition metal complexes. The numerous steps of the reaction enable a large variety of possible reaction paths.
[Reviews]
Prof. Anna M. Masdeu-Bultó, Prof. Mar Reguero, Prof. Carmen Claver
European Journal of Inorganic Chemistry, https://doi.org/10.1002/ejic.202100975. Read article.
The electrical wiring of galactose oxidase with a redox polymer is proven to support bio-electrocatalytic conversions with minimal interference from O2, thereby enabling the oxidation of primary alcohols while decreasing the associated production of harmful H2O2. A practical example is shown for the conversion of bio-renewable substrates. Product evaluation is used to investigate whether or not carboxylic acid derivatives are obtained after accumulation of the aldehyde product in the reaction medium.
[Research Articles]
Prof. Dr. Fangyuan Zhao, Ann Cathrin Brix, Anna Lielpetere, Prof. Dr. Wolfgang Schuhmann, Dr. Felipe Conzuelo
Chemistry – A European Journal, https://doi.org/10.1002/chem.202200868. Read article.
The mechanism of photoswitching for hemithioindigo cannot be described by pure dihedral rotation around the central carbon-carbon bond. A complementary motion, often pyramidalization, is required to facilitate radiationless internal conversion. This computational study, explores how the inclusion of electron-withdrawing and electron-donating substituents alters the excited state potential energy surfaces and the mechanism of photoisomerization. The predicted changes in energy landscapes reflect the acceleration or slowing of the photoisomerization process for different derivatives that is also observed in experiment.
[Research Articles]
Martin R. Lea, Prof. Vasilios G. Stavros, Prof. Reinhard J. Maurer
ChemPhotoChem, https://doi.org/10.1002/cptc.202100290. Read article.
Isomeric bis-squaraine dyes were designed and synthesized by the use of benzodipyrroles as central components. The geometry of two chromophores in one molecule is determined by the isomeric structure of benzodipyrroles, and therefore impacts on intramolecular exciton coupling and intramolecular electronic interaction. Consequently, electronic absorption, fluorescence, and electrochemical properties of isometic dyes are different from each other.
[Research Articles]
Ryuhei Sawada, Prof. Takeshi Maeda, Yuya Oda, Prof. Shigeyuki Yagi, Dr. Venugopal Karunakaran, Prof. Hideki Fujiwara, Prof. Ayyappanpillai Ajayaghosh
Chemistry – An Asian Journal, https://doi.org/10.1002/asia.202200227. Read article.
We fabricated a novel single-phase nanotube structure with uniform distribution of nanoscale SiOx units and amorphous carbon matrix. The hollow nanotube and homogeneously distributed ultrafine SiOx units greatly alleviate volume changes. When employed as an anode of LIBs, the SiOx/C NTs electrode displays excellent long−Cycle stability and rate capability.
[Research Articles]
Yuan Gao, Yang Ling, Dr. Yan Peng, Prof. Shiyou Guan
Chemistry – An Asian Journal, https://doi.org/10.1002/asia.202200191. Read article.
The intrinsic dual-role of rutheniumcatalyst has been established for the direct ʟ-rhamnosylation from ʟ-rhamnal involving α-stereoselective glycosylation and syn-diastereoselective dihydroxylation in a sequential one-pot process. The protocol is highly versatile, circumventing the functional group manipulation to access the biologically significant glycoconjugates comprising α-ʟ-Rha sugar moiety.
[Research Articles]
Manoj Kumar, Nitin Kumar, Aakanksha Gurawa, Dr. Sudhir Kashyap
ChemistrySelect 2022, 7, 0. Read article.
A series of bis(acetylide)-linked diruthenium(II) organometallic wire-like complexes have been synthesized by varying the chain length and electronic nature of the π-conjugated organic bridging ligands. Electrochemical and photophysical studies in combination with theoretical studies offer a clear understanding in modulating electrochemical and spectroscopic properties in the diruthenium complexes by varying the π-conjugated spacers.
[Research Articles]
Amit Sil, Sourav Saha Roy, Vipin Kumar Mishra, Sk Najmul Islam, Dr. Sabyashachi Mishra, Dr. Sanjib K. Patra
ChemistrySelect 2022, 7, 0. Read article.
A rapid magnetic resonance signal enhancements approach to amplify metabolic signals is introduced, used for cellular investigations and shows first evidence to work as a biomarker for Parkinson's disease.
[Research Articles]
Dr. Yonghong Ding, Dr. Sergey Korchak, Dr. Salvatore Mamone, Dr. Anil P. Jagtap, Dr. Gabriele Stevanato, Sonja Sternkopf, Denis Moll, Henning Schroeder, Dr. Stefan Becker, Prof. Dr. André Fischer, Dr. Ellen Gerhardt, Prof. Dr. Tiago F. Outeiro, Dr. Felipe Opazo, Prof. Dr. Christian Griesinger, Dr. Stefan Glöggler
Chemistry–Methods, https://doi.org/10.1002/cmtd.202200023. Read article.
Reactions of RhCl3 and (S,S)-dpen give the title complexes, the trications Λ-[Rh(S,S-dpen)3]3+ of which are lipophilized as mixed salts with one or more B(C6F5)4− or B(3,5-C6H3(CF3)2)4)− anions. Crystal structures show that the coordinated NH groups are excellent hydrogen bond donors in the solid state; this translates into outstanding enantioselective catalysis and chiral recognition phenomena with hydrogen bond accepting organic substrates in solution.
[Research Articles]
Aaron R. Wegener, Dr. Subrata K. Ghosh, Dr. Nattamai Bhuvanesh, Dr. Joseph Reibenspies, Prof. Dr. John A. Gladysz
European Journal of Inorganic Chemistry 2022, 0. Read article.
A fruitful fusion: A cytochrome P450 BM3 mutant and an alcohol dehydrogenase were genetically fused in different order and with different linkers to unite both substrate oxidation and cofactor regeneration in one construct. The fusions exhibited higher activity compared to separate enzymes as highlighted with the two-step oxidation of (+)-valencene to the grapefruit aroma (+)-nootkatone formed at a concentration of 1080 mg L−1.
[Research Articles]
Arsenij Kokorin, Prof. Vlada B. Urlacher
ChemBioChem, https://doi.org/10.1002/cbic.202200065. Read article.
Metabolically active coacervates combine two important hallmarks of life: metabolism and compartmentalization. This work shows that a wide range of prebiotic metabolites can form complex coacervate protocells with oligoarginine. Prebiotically plausible conversions of the metabolites can give rise to active coacervate formation, are enhanced inside the coacervate microenvironment and can, in turn, affect the stability of the coacervate compartment.
[Research Articles]
Iris B. A. Smokers, Merlijn H. I. van Haren, Tiemei Lu, Dr. Evan Spruijt
ChemSystemsChem, https://doi.org/10.1002/syst.202200004. Read article.
Highly transparent, conductive zinc oxide films have been deposited via AACVD: A comprehensive analysis of precursors and the products of their AACVD showing a direct correlation between precursors and the optoelectronic properties of the respective thin films. This technique allows for fine tuning of precursors to achieve the desired properties for the application.
[Research Articles]
Malavika A. Bhide, Prof. Claire J. Carmalt, Dr. Caroline E. Knapp
ChemPlusChem 2022, 87, 0. Read article.
The sensitivity enhancement of a simple binaphthalene boronic acid sensor towards saccharides achieved by addition of 2-methyl-2-aminopropanol as additive is reported in this work. The applicability of the sensor was demonstrated by quantitative analysis of d-fructose in commercial soft beverages.
[Research Articles]
Andrej Penavic, Aco Radujevic, Mariia Pushina, Prof. Dr. Pavel Anzenbacher Jr.
Analysis & Sensing, https://doi.org/10.1002/anse.202100068. Read article.
Biopanning led to the identification of tobacco mosaic virus (TMV)-binding peptides that can be utilized for diagnostic assays to detect TMV in plant sap or for biotechnology applications such as adding functional moieties to the TMV used as nanocarrier.
[Research Articles]
Dr. Soo Khim Chan, Prof. Dr. Nicole F. Steinmetz
ChemBioChem, https://doi.org/10.1002/cbic.202200040. Read article.
An electrochemical approach for the hydroxylation of electron-rich arenes was developed. The transformation relies on the anodic oxidation of arene and the use trifluoroacetic acid as an oxygen source. The reaction is carried out in an electrochemical flow reactor, which allowed to synthesize sensitive products by shortening reaction/residence time to 1.25 minutes and to perform a scale up experiment.
[Research Articles]
Anni Kooli, Dr. Lars Wesenberg, Marko Beslać, Anastasiya Krech, Prof. Margus Lopp, Prof. Timothy Noël, Dr. Maksim Ošeka
European Journal of Organic Chemistry, https://doi.org/10.1002/ejoc.202200011. Read article.
Caught on camera: The electrochemistry of a Prussian blue film deposited on a platinum modified electrode was studied in a potassium salt aqueous solution. Along one cyclic voltammetry, three systems of peaks were detected, and the digital video electrochemistry (DVEC) revealed the complex electrochromic changes involving intermediate species associated to the Everitt's salt-Prussian blue-Prussian yellow interconversion.
[Research Articles]
Dr. José J. García-Jareño, Dr. Jerónimo Agrisuelas, Dr. Antoni F. Roig, Dr. Francisco Vicente
ChemElectroChem 2022, 9, 0. Read article.
AKE protein residues exerting the highest electric fields along the reactive bond are also the residues that visit the most conformations within the picosecond to microsecond timescale. This effect is further exacerbated by entropy-tuning mutations that otherwise leave the average protein structure unchanged.
[Research Articles]
Monsurat Motunrayo Lawal, Valerie Vaissier Welborn
ChemBioChem, https://doi.org/10.1002/cbic.202200097. Read article.
Homogeneous glycodendriproteins: A comparative reactive platform was designed via use of C−S bond-forming reactions (unprecedented for this family of glycoconjugates) and via triazoles (in two orientations), from recombinant proteins containing non-canonical amino acids (dehydroalanine, homoallylglycine, homopropargylglycine, and azidohomoalanine) that can give access to well-defined glycodendriproteins as synthetic functional mimics of N-linked glycoproteins.
[Research Articles]
Dr. Isidro Cobo, Prof. M. Isabel Matheu, Prof. Sergio Castillón, Prof. Benjamin G. Davis, Dr. Omar Boutureira
ChemBioChem, https://doi.org/10.1002/cbic.202200020. Read article.
Glyme electrolyte boosts: Graphite as fast charging anode in combination with glyme-based electrolytes is coupled with Prussian white (PW) cathodes to achieve cells with high power characteristics without compromising on energy density. Both diglyme and tetraglyme exhibit excellent cycling stability and rate capacity retention in graphite | (electrolyte) | PW cells. Glymes also exhibit enhanced electrochemical properties as compared to conventional carbonate-based electrolytes with PW cathodes.
[Research Articles]
Dr. Sai Gourang Patnaik, Ines Escher, Dr. Guillermo A. Ferrero, Prof. Philipp Adelhelm
Batteries & Supercaps, https://doi.org/10.1002/batt.202200043. Read article.
An adaptive auto-synthesizer that performs actions at different times based on real-time reaction monitoring data was developed. The robotic platform's versatility and reproducibility were demonstrated by obtaining kinetic data for a multistep amidation reaction using a variety of substrates.
[Research Articles]
Junliang Liu, Yusuke Sato, Fan Yang, Andrew J. Kukor, Prof. Jason E. Hein
Chemistry–Methods, https://doi.org/10.1002/cmtd.202200009. Read article.
Lithium-ion batteries show excellent performance but pose challenges at the same time related to the accessibility of lithium metal. Therefore, alternatives based on magnesium are very attractive and the electrolytes must fulfill specific requirements like non-corrosiveness and electrochemical stability as well as straightforward synthesis. The carbazolylmagnesium halide system offers a promising strategy for a suitable Mg-based electrolyte.
[Research Articles]
Philipp Schüler, Simon Sengupta, Steve Zaubitzer, Florian Fiesinger, Dr. Saustin Dongmo, Dr. Helmar Görls, Dr. Margret Wohlfahrt-Mehrens, Matthias van den Borg, Daniel Gaissmaier, Dr. Sven Krieck, Dr. Mario Marinaro, Timo Jacob, Prof. Dr. Matthias Westerhausen
European Journal of Inorganic Chemistry, https://doi.org/10.1002/ejic.202200149. Read article.
In this Review, recent examples of successful isolation and structural determination of cationic species based on redox-active pure hydrocarbons with various geometries are presented. X-ray structures and electrochemical/spectroscopic properties of the cationic states, which can be produced from closed-shell neutral donors, open-shell neutral species, and photo- and thermo-responsive advanced molecules.
[Reviews]
Takashi Harimoto, Prof. Dr. Yusuke Ishigaki
ChemPlusChem, https://doi.org/10.1002/cplu.202200013. Read article.
Silicon nanotubes confined in nitrogen doped carbon nanocomposites designed by a simple dealloying strategy are reported. The nanotube engineering endows silicon anodes with low particle expansion upon lithiation, rapid ion/electron diffusion, remarkable specific discharge capacity and outstanding cycling performance.
[Research Articles]
Jinfu Zhao, Dr. Wenxian Wei, Dr. Na Xu, Dr. Xiaotong Wang, Prof. Limin Chang, Dr. Li Wang, Luan Fang, Dr. Zaiyuan Le, Dr. Ping Nie
ChemPhysChem, https://doi.org/10.1002/cphc.202100832. Read article.
Electrolyte filling of realistic 3D lithium-ion battery cathodes was studied using the lattice Boltzmann method. The influence of process parameters, structural, and physico-chemical properties was investigated. It was shown that they affect electrolyte saturation and battery performance. The results are useful to optimize the process and electrode and electrolyte design.
[Research Articles]
Dr. Martin P. Lautenschlaeger, Benedikt Prifling, Benjamin Kellers, Julius Weinmiller, Dr. Timo Danner, Prof. Volker Schmidt, Prof. Arnulf Latz
Batteries & Supercaps, https://doi.org/10.1002/batt.202200090. Read article.
Nanostar-shaped gold nanoparticles are among the most efficient plasmonic materials for surface-enhanced Raman scattering (SERS) applications, enabling single-particle analysis. This Review summarizes and discusses the state-of-the-art synthetic approaches as well as the strict correlation of the optical properties of this intriguing class of nanomaterials with their morphological features. Finally, representative examples of their implementation into analytical SERS applications are illustrated.
[Reviews]
I. Brian Becerril-Castro, Irene Calderon, Dr. Nicolas Pazos-Perez, Dr. Luca Guerrini, Dr. Florian Schulz, Dr. Neus Feliu, Dr. Indranath Chakraborty, Dr. Vincenzo Giannini, Prof. Dr. Wolfgang J. Parak, Prof. Dr. Ramon A. Alvarez-Puebla
Analysis & Sensing, https://doi.org/10.1002/anse.202200005. Read article.
Pumping iron: The amount of carbon monoxide produced from the photochemical catalytic reduction of carbon dioxide by an iron porphyrin catalyst is limited by the electron transfer regenerating the phenoxazine photosensitizer and not by the driving force of the electron transfer between the excited sensitizer and the catalyst.
[Research Articles]
Martin Kientz, Dr. Grace Lowe, Dr. Blaine G. McCarthy, Prof. Dr. Garret M. Miyake, Dr. Julien Bonin, Prof. Dr. Marc Robert
ChemPhotoChem, https://doi.org/10.1002/cptc.202200009. Read article.
Highly reversible zinc plating/stripping of a zinc phytate modified zinc (ZP−Zn) electrode without dendrite formation.
[Research Articles]
Leilei Du, Dr. Xu Hou, Xiaofei Yang, Dr. Vassilios Siozios, Dr. Bo Yan, Dr. Xiaokang Ju, Prof. Elie Paillard, Prof. Martin Winter, Dr. Tobias Placke, Prof. Jie Li
Batteries & Supercaps, https://doi.org/10.1002/batt.202100376. Read article.
Polysulfides ball: A scalable synthesis of carbon coated Ti4O7 hollow nanoparticles using spherical polymer electrolyte brush as soft template has been developed as efficient sulfur host for multilayer lithium-sulfur pouch cells. The nanoparticles provide strong chemical adsorption to polysulfides and endow a stable cycling with a high-capacity retention of 83.7 % after 100 cycles at 0.1 C.
[Research Articles]
Dr. Shilin Mei, Dr. Andreas Siebert, Dr. Yaolin Xu, Dr. Ting Quan, Dr. Raul Garcia-Diez, Prof. Dr. Marcus Bär, Paul Härtel, Dr. Thomas Abendroth, Dr. Susanne Dörfler, Prof. Dr. Stefan Kaskel, Prof. Dr. Yan Lu
Batteries & Supercaps, https://doi.org/10.1002/batt.202100398. Read article.
A new disiloxane compound with tertiary amine and dioxaborolane groups, N,N-dimethyl-2-(3-(1,1,3,3-tetramethyl-3-(3-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethoxy)propyl)disiloxanyl)propoxy)ethan-1-amine (TMBDSA) is synthesized as bifunctional electrolyte additive for improving the cycling stability of nickel-rich LiNi0.8Co0.1Mn0.1O2. The LiNi0.8Co0.1Mn0.1O2/graphite cells with TMBDSA in the baseline electrolyte exhibit significantly improved electrochemical performances including rate capability and cycling stability even at an elevated temperature of 55 °C.
[Research Articles]
Cheng Chen, Xiaodan Yan, Prof. Lingzhi Zhang
ChemElectroChem 2022, 9, 0. Read article.
Toluene dioxygenase has long been applied as a green-chemical tool in the production of chiral cis-diol metabolites for synthetic applications. However, its range of applications is currently restricted by strict substrate scope and selectivity limitations. In this study, a rational enzyme engineering strategy was applied to develop toluene dioxygenase variants with significantly improved activity for an important class of aromatic substrates.
[Research Articles]
Elizabeth A. Osifalujo, Cristina Preston-Herrera, Phillip C. Betts, Louis R. Satterwhite, Dr. Jordan T. Froese
ChemistrySelect 2022, 7, 0. Read article.
Second sphere effects: Counter anions can significantly impact the luminescence of cationic complexes by suppressing or inducing non-radiative decay pathways. The near-infrared (NIR) emissive [Cr(ddpd)2]3+ complex showed strongly varying luminescence quantum yields (ΦPL) and lifetimes depending on the counter ions and the surrounding matrix. Embedding polystyrene nanoparticles stained with the complex in a poly(vinyl alcohol) film yielded a strongly NIR-emissive material with ΦPL of 15.2 % under ambient conditions.
[Research Articles]
Dr. Cui Wang, Winald R. Kitzmann, Dr. Florian Weigert, Dr. Christoph Förster, Xifan Wang, Prof. Dr. Katja Heinze, Dr. Ute Resch-Genger
ChemPhotoChem, https://doi.org/10.1002/cptc.202100296. Read article.
Anionic N-heterocyclic carbene chalcogen-pnictogen complexes (WCA-NHC)E−E′Cl2 (E=S, Se; E′=P, As, Sb, Bi) were isolated from the salt metathesis reaction of anionic thione/selone lithium salts [{(WCA-IDipp)E}Li(toluene)] with the corresponding pnictogen trihalides. In the heavier pnictogen derivatives, “Menshutkin” type interactions are found in the solid-state structures.
[Research Articles]
Dr. Luong Phong Ho, Prof. Dr. Matthias Tamm
European Journal of Inorganic Chemistry, https://doi.org/10.1002/ejic.202200090. Read article.
Rhodamine fluorophores are a type of xanthene dyes, whose photophysical properties are easily tuned through chemical derivatization. These modifications can dramatically affect the properties in absorption coefficient, emission wavelength, photo-stability and biocompatibility, which provides them with promising options for STED super-resolution imaging. This Review article summarizes the most recent developments in this field. The general design principle has been summarized and the relationships between structure derivatization and photophysical properties have been highlighted.
[Reviews]
Fuqian Chen, Wenming Liu, Huan Li, Tao Deng, Bengang Xing, Fang Liu
Analysis & Sensing, https://doi.org/10.1002/anse.202100066. Read article.
Ru in the mood: Highly sensitive and selective electrochemical detection of 5-HT was successfully done based on MIP sensor with GO and CHT. The MIP sensor exhibited wide dynamic range, low LOD and excellent selectivity towards the serotonin over some potential interferents, being also applied for the quantitation of serotonin from serum, tears and saliva with very good recoveries.
[Articles]
Mihaela Tertis, Petra-Lia Sîrbu, Maria Suciu, Diana Bogdan, Ovidiu Pana, Prof. Dr. Cecilia Cristea, Ioan Simon
ChemElectroChem 2022, 9, 0. Read article.
In this work, ATG nanocomposites has been synthesized via a one-pot hydrothermal reaction and utilized for pollutant photodegradation. Based on the synergistic effect of three components, including Ag, TiO2 and rGO, there are three excitation modes of photogenerated carriers generated by visible light. Under visible light irradiation, the nanocomposites can produce active species such as the hydroxyl and superoxide radical, which play a major role in the photodegradation of pollutants.
[Research Articles]
Zihao Wo, Hua Ma, Chaofan Shi, Yier Su, Prof. Xiwen Zhang
ChemistrySelect 2022, 7, 0. Read article.
The synthesis and physical properties of AuRh nanoalloys, with size range between 20-150 atoms, are studied by means of molecular dynamics and density functional theory calculations. The best synthetic route towards stable nanosystems is reported along with their physical features, which show unique characteristics that have active potential in photocatalytic applications.
[Research Articles]
Mirko Vanzan, Robert M. Jones, Prof. Stefano Corni, Prof. Roberto D'Agosta, Prof. Francesca Baletto
ChemPhysChem 2022, 23, 0. Read article.
The electrochemical nitrogen reduction reaction is regarded as a potential alternative to produce ammonia under ambient conditions. In this work, [Mo3S13]2− clusters are introduced onto 2D-structured Pd nanosheets (NSs) to form Pd−S−Mo NSs with abundant Mo active sites for N2 activation. A Faradaic efficiency (FE) of 10.7 % was realized by Pd−S−Mo NSs on a hydrophilic carbon support. Furthermore, loading of Pd−S−Mo NSs on a hydrophobic hierarchical graphene support was carried out to suppress the hydrogen evolution reaction, achieving an FE of 23.8 % and an improved ammonia yield.
[Communications]
Wuyong Zhang, Weijin Lin, Juan Ren, Prof. Nanfeng Zheng, Prof. Binghui Wu
ChemElectroChem 2022, 9, 0. Read article.
NaviCatGA is a genetic algorithm designed to optimize molecular catalysts towards target properties. The proposed strategy is versatile and robust, as demonstrated on both transition metal and organo-catalysis applications. Evolutionary optimization using fragment databases bypasses combinatorial scaling through the incorporation of chemical constraints.
[Research Articles]
Dr. Ruben Laplaza, Simone Gallarati, Prof. Clemence Corminboeuf
Chemistry–Methods, https://doi.org/10.1002/cmtd.202100107. Read article.
Mixtures of deuterated chloroform and n-alkylaniline substituted 1,3,5-benzentricarboxamides are demonstrated to possess lyotropic liquid crystalline properties. Using NMR spectroscopy, the self-assembly behaviour within the constituting homologous series is investigated and effects of the sidechains aromatic ring and aliphatic chain on supramolecular behaviour characterized.
[Research Articles]
Kevin Knoll, Tobias Kostner, Christian Lorenz, Prof. Dr. Christina M. Thiele
European Journal of Organic Chemistry 2022, 0. Read article.
peri-Acenes represent an important class of materials for organic (opto)electronic and spintronic devices. This Review provides a summary of the recent progress in the precision synthesis and characterization of peri-acenes and their π-extended systems via on-surface or wet chemistry as well as the outlooks in this research field.
[Reviews]
Dr. M. R. Ajayakumar, Dr. Ji Ma, Prof. Dr. Xinliang Feng
European Journal of Organic Chemistry 2022, 0. Read article.
Autonomous formation of primitive cell-like compartment populations is observed on thin sections of early Earth minerals and a Martian meteorite specimen. Multilamellar lipid reservoirs undergo a series of autonomous shape transformations, resulting in formation of networks of lipid compartments or compartment aggregates resembling microbial colonies. The compartments are able to encapsulate RNA and accomodate non-enzymatic entropy-driven DNA reactions.
[Full Papers]
Dr. Elif S. Köksal, Dr. Inga Põldsalu, Prof. Henrik Friis, Prof. Stephen J. Mojzsis, Prof. Martin Bizzarro, Prof. Irep Gözen
ChemSystemsChem, https://doi.org/10.1002/syst.202100040. Read article.
A metal-free approach towards an endocyclic disilene 2 is reported. The mechanism towards 2 was studied using DFT calculations. Based on quantum chemical calculations, the bonding situation within the endocyclic disilene was determined. Moreover, compound 2 undergoes a thermal or light-induced dimerization with NHC loss to the corresponding dimer. Selected transition metal carbonyl compounds of 2 have been be prepared.
[Research Articles]
Thomas Lainer, Dr. Deepak Dange, Michael Pillinger, Prof. Dr. Roland C. Fischer, Prof. Dr. Anne-Marie Kelterer, Prof. Dr. Cameron Jones, Dr. Michael Haas
ChemistryOpen 2022, 11, 0. Read article.
Teamwork makes the dream work: Synthesis of a linear, photoactive ruthenium complex has led to the fabrication and crystal structure of a 1D coordination polymer linked between the metalloligand and zinc ions. The coordination polymer exhibits exceptional photostability in comparison to its monomer counterpart. This new metalloligand offers a fresh design strategy for the development of new photoactive supramolecular architectures.
[Research Articles]
Seán Hennessey, Dr. Christopher S. Burke, Dr. Roberto González-Gómez, Dr. Debobroto Sensharma, Dr. Wenming Tong, Dr. Amal, Cherian Kathalikkattil, Dr. Fabio Cucinotta, Prof. Wolfgang Schmitt, Prof. Tia E. Keyes, Dr. Pau Farràs
ChemPhotoChem, https://doi.org/10.1002/cptc.202100299. Read article.
Better batteries: This review summarizes the steps performed in constructing sodium ion (Na-ion) cells at research scale, highlighting variables and techniques that are likely to impact measured cycling performance. Process-structure-performance links observed in lithium-ion cells can be instructive, while parameter optimization through independent validation is recommended when testing novel materials for Na-ion cells.
[Reviews]
Dr. M. Anne Sawhney, Dr. Malik Wahid, Dr. Santanu Muhkerjee, Rebecca Griffin, Prof. Alexander Roberts, Prof. Satishchandra Ogale, Dr. Jenny Baker
ChemPhysChem 2022, 23, 0. Read article.
A method is presented to conduct an in situ nano-X ray Computed Tomography (nano-XCT) experiment assisted by the in-line phase contrast technique for low Z elements in batteries. A carbon-based O2-cathode of Li-O2 battery was used for this investigation. The time-resolved 3D volumes obtained showed a force pushing the analyzed area out of the field of view. This is due to the thickening of the lithium foil during the electrochemical process.
[Full Papers]
Dr. Zeliang Su, Dr. Tuan-Tu Nguyen, Dr. Christophe Le Bourlot, Dr. François Cadiou, Dr. Arash Jamali, Dr. Vincent De Andrade, Prof. Alejandro A. Franco, Dr. Arnaud Demortière
Chemistry–Methods 2022, 2, 0. Read article.
Operando Raman spectroscopy is conducted to track speciation and migration of polysulfides in catholyte Lithium−Sulfur cell. Our results show that migration of polysulfides is the key to cell performance in terms of capacity and stability of Li anode. It is found that formation of long chain polysulfides is delayed during charge because of rapid formation/migration of shorter chain species.
[Research Articles]
Matthew Sadd, Dr. Marco Agostini, Dr. Shizhao Xiong, Prof. Aleksandar Matic
ChemPhysChem 2022, 23, 0. Read article.