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Gold

goldZum Golde drängt, am Golde hängt doch alles.
For gold contend, On gold depend All things.

J. W. Goethe, Faust I

The element gold has many personalities, of which the image of a noble but soft, yellow metal would first across one's mind. The recently discovered nanoparticles and nanowires containing gold are a natural extension of this aspect, as are the uses of gold in electronics and decoration. Thought to be noble, gold actually has a rich chemistry. Fascinating in its complexity for academic chemists, this chemistry has potential applications in materials science, medicine and, recently, in both heterogeneous and homogeneous catalysis. Some fresh promises are related to the optical properties of certain gold compounds or to the possibility of forming new nanostructures based on gold. The unique properties of gold are strongly influenced by relativistic effects.

[1] P. Pyykkö, Theoretical Chemistry of Gold
Angew. Chem. 2004, 116, 4512–4557; Angew. Chem. Int. Ed. 2004, 43, 4412–4456

[2] A. S. K. Hashmi, The Catalysis Gold Rush: New Claims
Angew. Chem. 2005, 117, 7150; Angew. Chem. Int. Ed. 2005, 44, 6990

[3] G. Schmid, B. Corain, Nanoparticulated Gold: Syntheses, Structures, Electronics, and Reactivities
Eur. J. Inorg. Chem. 2003, 3081

Recent Articles

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An Electrochemical Sensing Platform for the Detection of Lead Ions Based on Dicarboxyl-Calix[4]arene

An Electrochemical Sensing Platform for the Detection of Lead Ions Based on Dicarboxyl‐Calix[4]arene

[Full Paper]
Siti Fatimah Nur Abdul Aziz, Ruzniza Zawawi, Shahrul Ainliah Alang Ahmad
Electroanalysis, January 18, 2018, https://doi.org/10.1002/elan.201700736 Read article

Chiral Phosphine–Phosphite Ligands in Asymmetric Gold Catalysis: Highly Enantioselective Synthesis of Furo[3,4-d]-Tetrahydropyridazine Derivatives through [3+3]-Cycloaddition

Chiral Phosphine–Phosphite Ligands in Asymmetric Gold Catalysis: Highly Enantioselective Synthesis of Furo[3,4‐d]‐Tetrahydropyridazine Derivatives through [3+3]‐Cycloaddition

The AuI-catalyzed reaction of 2-(1-alkynyl)-2-alken-1-ones with azomethine imines regio- and diastereoselectively affords furo[3,4-d]tetrahydropyridazines in a tandem cyclization/intermolecular [3+3]-cycloaddition process under mild conditions.

[Communication]
Qingwei Du, Jörg-Martin Neudörfl, Hans-Günther Schmalz
Chem. Eur. J., January 17, 2018, https://doi.org/10.1002/chem.201800042 Read article

Direct Evidence for the Origin of Bis-Gold Intermediates: Probing Gold Catalysis with Mass Spectrometry

Direct Evidence for the Origin of Bis‐Gold Intermediates: Probing Gold Catalysis with Mass Spectrometry

Going for gold: Gold-catalyzed alkyne hydration was studied by using in situ reacting mass spectrometry (MS) technology. By monitoring the reaction process in solution under different conditions and examining the reaction occurrence in the early reaction stage, experimental evidence to support that the bis-gold complex is a crucial reaction intermediate was collected (see scheme).

[Full Paper]
Mei Lu, Yijin Su, Pengyi Zhao, Xiaohan Ye, Yi Cai, Xiaodong Shi, Eric Masson, Fengyao Li, J. Larry Campbell, Hao Chen
Chem. Eur. J., January 17, 2018, https://doi.org/10.1002/chem.201703666 Read article

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks

Nanotemplates derived from the self-assembly of linear ABC-type terpolymers are used to achieve well-defined metallic dot arrays with “outside-the-box” symmetries. Following this strategy, highly ordered gold nanodot arrays with unique p3m1 and p2 symmetries are demonstrated from patterned templates formed by thin-film cubic Q214 and orthorhombic O70 network structures.

[Communication]
Karim Aissou, Muhammad Mumtaz, Alberto Alvarez-Fernandez, Jean Mercat, Ségolène Antoine, Gilles Pécastaings, Virginie Ponsinet, Cécile Dobrzynski, Guillaume Fleury, Georges Hadziioannou
Macromol. Rapid Commun., January 16, 2018, https://doi.org/10.1002/marc.201700754 Read article

Gold(II) Trihalide Complexes from Organogold(III) Precursors

Gold(II) Trihalide Complexes from Organogold(III) Precursors

Golden Countdown: Cascaded one-electron reductions are observed in the gas phase for monoalkylgold(III) [CF3AuX3] complexes (X=Cl, Br) that result from the stepwise homolytic cleavage of Au−C and Au−X bonds. The processes were also studied using DFT methods.

[Communication]
Miguel Baya, Alberto Pérez-Bitrián, Sonia Martínez-Salvador, Antonio Martín, José M. Casas, Babil Menjón, Jesús Orduna
Chem. Eur. J., January 16, 2018, https://doi.org/10.1002/chem.201705509 Read article

Wiring Gold Nanoparticles and Redox Enzymes: A Self-Sufficient Nanocatalyst for the Direct Oxidation of Carbohydrates with Molecular Oxygen

Wiring Gold Nanoparticles and Redox Enzymes: A Self‐Sufficient Nanocatalyst for the Direct Oxidation of Carbohydrates with Molecular Oxygen

Down to the wire: A self-sufficient nanocatalyst composed of two enzymes wired through gold nanoparticles is designed. The gold nanoparticles permit direct electrochemical “communication” between the two enzymes, allowing electron transfer to occur. These nanocatalysts are used for the direct oxidation of various carbohydrates with molecular oxygen. LAC=laccase, GDH=glucose dehydrogenase.

[Communication]
Dalius Ratautas, Eimantas Ramonas, Liucija Marcinkevičienė, Rolandas Meškys, Juozas Kulys
ChemCatChem, January 15, 2018, https://doi.org/10.1002/cctc.201701738 Read article

Circular Gold Nanodisks with Synthetically Tunable Diameters and Thicknesses

Circular Gold Nanodisks with Synthetically Tunable Diameters and Thicknesses

Colloidal circular Au nanodisks with controllable diameters and thicknesses are synthesized. Their in-plane dipolar plasmon resonance can be synthetically varied from the visible to near-infrared region. Homodimers and heterodimers in different geometrical configurations are assembled out of the circular Au nanodisks with different thicknesses. They display rich plasmon modes that can rarely be seen on other dimeric metal nanostructures.

[Full Paper]
Ximin Cui, Feng Qin, Qifeng Ruan, Xiaolu Zhuo, Jianfang Wang
Adv. Funct. Mater., January 15, 2018, https://doi.org/10.1002/adfm.201705516 Read article

Voltammetric Detection of Thrombin by Labeling with Osmium Tetroxide Bipyridine and Binding with Aptamers on a Gold Electrode

Voltammetric Detection of Thrombin by Labeling with Osmium Tetroxide Bipyridine and Binding with Aptamers on a Gold Electrode

[Short Communication]
Sarasi K. K. Galagedera, Loan Huynh, Falko Wachholz, Martin Jacobsen, Phensinee Haruehanroengra, Jia Sheng, Alan A. Chen, Gerd-Uwe Flechsig
Electroanalysis, January 12, 2018, https://doi.org/10.1002/elan.201700734 Read article

Surface Structure Sensitivity of CO2 Electroreduction on Low-Index Gold Single Crystal Electrodes in Ionic Liquids

Surface Structure Sensitivity of CO2 Electroreduction on Low‐Index Gold Single Crystal Electrodes in Ionic Liquids

[Communication]
Yongchun Fu, Maria R. Ehrenburg, Peter Broekmann, Alexander V. Rudnev
ChemElectroChem, January 12, 2018, https://doi.org/10.1002/celc.201701209 Read article

Photoinduced Oxidation Catalysis by Au25-xAgx(SR)18 Nanoclusters

Photoinduced Oxidation Catalysis by Au25‐xAgx(SR)18 Nanoclusters

Unsupported Au25-xAgx(SR)18 nanoclusters (NCs) have been utilized for a photoinduced oxidation catalysis. The mechanism of the reaction was established by using UV-vis, EPR and GCMS. Under visible irradiation, the NCs donate electrons to triplet oxygen to generate singlet oxygen to initiate the transformation of benzylamines into imines.

[Full Paper]
Chong Hanbao, Gao Guiqi, Chai Jinsong, Yang Sha, Rao Bo, Li Guang, Zhu Manzhou
ChemNanoMat, January 11, 2018, https://doi.org/10.1002/cnma.201700336 Read article

Unique Reactivity of Dihydrosilanes under Catalysis by Supported Gold Nanoparticles: cis-1,2-Dehydrogenative Disilylation of Alkynes

Unique Reactivity of Dihydrosilanes under Catalysis by Supported Gold Nanoparticles: cis‐1,2‐Dehydrogenative Disilylation of Alkynes

A Si-ght for sore eyes: In contrast to monohydrosilanes (R3SiH), which in the presence of supported gold nanoparticles primarily undergo typical β-(E)-hydrosilylation reactions with alkynes, dihydrosilanes (R2SiH2) under catalysis of Au/TiO2 lead primarily to cis-1,2-dehydrogenative disilylation reactions.

[Communication]
Iakovos Saridakis, Marios Kidonakis, Manolis Stratakis
ChemCatChem, January 10, 2018, https://doi.org/10.1002/cctc.201701526 Read article

Hollow Porous Carbon with in situ Generated Monodisperse Gold Nanoclusters for Efficient CO Oxidation

Hollow Porous Carbon with in situ Generated Monodisperse Gold Nanoclusters for Efficient CO Oxidation

Golden channel walls: A Au/HPCN (hollow porous carbon nanospheres) porous catalyst, which is both durable and uniform, is synthesized by a facile in situ reduction route for continuous and efficient catalytic CO oxidation.

[Full Paper]
Jiafu Qu, Haiguang Zhu, Dongyun Chen, Najun Li, Qingfeng Xu, Jianping Xie, Hua Li, Jinghui He, Jianmei Lu
ChemCatChem, January 10, 2018, https://doi.org/10.1002/cctc.201701463 Read article

PMO-Immobilized AuI–NHC Complexes: Heterogeneous Catalysts for Sustainable Processes

PMO‐Immobilized AuI–NHC Complexes: Heterogeneous Catalysts for Sustainable Processes

Boomerang effect: Gold(I)-N-heterocyclic carbene (NHC) complexes are successfully immobilized on PMO materials via straightforward acid–base reactions with the corresponding [Au(OH)(NHC)] synthon. This catalyst design strategy results in a boomerang-type catalyst for the hydration of alkynes. The catalyst can be recovered and then reused several times without any loss in efficiency.

[Article]
Els De Canck, Fady Nahra, Kevin Bevernaege, Sofie Vanden Broeck, Judith Ouwehand, Diederick Maes, Steven P. Nolan, Pascal Van Der Voort
ChemPhysChem, January 05, 2018, https://doi.org/10.1002/cphc.201701102 Read article

Effect of Retro-Inverso Isomer of Bradykinin on Size-Dependent Penetration of Blood–Brain Tumor Barrier

Effect of Retro‐Inverso Isomer of Bradykinin on Size‐Dependent Penetration of Blood–Brain Tumor Barrier

Gold nanoparticles (GNPs) ranging from ≈5-90 nm are engineered to mimic nanocarriers of various sizes. The ability of the GNPs to cross the blood-brain tumor barrier (BBTB) is investigated in tumor bearing rats. The results indicate that 70 nm GNPs enabled maximum drug delivery to the glioma after the BBTB breakdown induced by retro-inverso bradykinin (RI-BK).

[Full Paper]
Bingxia Su, Ruifeng Wang, Zuoxu Xie, Huitong Ruan, Jichen Li, Cao Xie, Weiyue Lu, Jing Wang, Dongli Wang, Min Liu
Small, January 02, 2018, https://doi.org/10.1002/smll.201702331 Read article

Electrochemical Characterization and Electrocatalytic Application of Gold Nanoparticles Synthesized with Different Stabilizing Agents

Electrochemical Characterization and Electrocatalytic Application of Gold Nanoparticles Synthesized with Different Stabilizing Agents

[Full Paper]
Paulina Sierra-Rosales, Rodrigo Torres, Carlos Sepúlveda, Marcelo J. Kogan, Juan Arturo Squella
Electroanalysis, December 29, 2017, https://doi.org/10.1002/elan.201700633 Read article

Ethynyl Complexes of Gold(I) Formed by Transmetallation Using Tin(IV) or Silicon(IV) Compounds

Ethynyl Complexes of Gold(I) Formed by Transmetallation Using Tin(IV) or Silicon(IV) Compounds

[Communication]
Karsten Klauke, Svenja Werner, Fabian Mohr
Eur. J. Inorg. Chem., December 29, 2017, https://doi.org/10.1002/ejic.201701321 Read article

Solubilization of Hydrophobic Catalysts Using Nanoparticle Hosts

Solubilization of Hydrophobic Catalysts Using Nanoparticle Hosts

Encapsulation of transition metal catalysts into the monolayers of gold nanoparticles generates nanoreactors that provide water solubility and a protective environment for the catalysts.

[Communication]
Youngdo Jeong, Gulen Yesilbag Tonga, Bradley Duncan, Bo Yan, Riddha Das, Chonticha Sahub, Vincent M. Rotello
Small, December 22, 2017, https://doi.org/10.1002/smll.201702198 Read article

Heparin-gold Nanoparticles and Liquid Crystal Applied in Label-free Electrochemical Immunosensor for Prostate-Specific Antigen

Heparin‐gold Nanoparticles and Liquid Crystal Applied in Label‐free Electrochemical Immunosensor for Prostate‐Specific Antigen

[Full Paper]
Lucas Talamini, Nicole Zanato, Eduardo Zapp, Daniela Brondani, Eduard Westphal, Hugo Gallardo, Iolanda Cruz Vieira
Electroanalysis, December 21, 2017, https://doi.org/10.1002/elan.201700651 Read article

Gold Nanoparticle-Based Paper Sensor for Simultaneous Detection of 11 Benzimidazoles by One Monoclonal Antibody

Gold Nanoparticle‐Based Paper Sensor for Simultaneous Detection of 11 Benzimidazoles by One Monoclonal Antibody

The paper sensor is fabricated based on gold nanoparticles. It can be used to detect 11 benzimidazoles simultaneously, including albendazole, albendazole s-oxide, albendazole sulfone, fenbendazole, fenbendazole sulfone, flubendazole, mebendazole, parbendazole, oxfendazole, oxibendazole, and carbendazim within 5 min in food samples.

[Full Paper]
Lingling Guo, Xiaoling Wu, Liqiang Liu, Hua Kuang, Chuanlai Xu
Small, December 20, 2017, https://doi.org/10.1002/smll.201701782 Read article

Novel Sensing Strategies based on Monolayer Protected Gold Nanoparticles for the Detection of Metal Ions and Small Molecules

Novel Sensing Strategies based on Monolayer Protected Gold Nanoparticles for the Detection of Metal Ions and Small Molecules

[Personal Account]
Elif Ertem, Marta Diez-Castellnou, Quy Khac Ong, Francesco Stellacci
Chem. Rec., December 18, 2017, https://doi.org/10.1002/tcr.201700065 Read article

A Novel Molecularly Imprinted Photoelectrochemical Sensor Based on g-C3N4-AuNPs for the Highly Sensitive and Selective Detection of Triclosan

A Novel Molecularly Imprinted Photoelectrochemical Sensor Based on g‐C3N4‐AuNPs for the Highly Sensitive and Selective Detection of Triclosan

[Full Paper]
Shasha Feng, Xiaoping Wei, Li Zhong, Jianping Li
Electroanalysis, December 18, 2017, https://doi.org/10.1002/elan.201700514 Read article

Ligands Modulate Reaction Pathway in the Hydrogenation of 4-Nitrophenol Catalyzed by Gold Nanoclusters

Ligands Modulate Reaction Pathway in the Hydrogenation of 4‐Nitrophenol Catalyzed by Gold Nanoclusters

The road less traveled: We demonstrate that the ligand landscape on a nanocluster (NC) surface can be used to modulate the catalytic active sites of metal NCs in solution thus to direct the reaction towards desirable products through a pathway different from that commonly reported. We highlight the importance of ligands on nanogold catalysts to tailor the active site exposure and selectivity of ligand-protected metal NC catalysts.

[Communication]
Ricca Rahman Nasaruddin, Tiankai Chen, Jingguo Li, Nirmal Goswami, Jiaguang Zhang, Ning Yan, Jianping Xie
ChemCatChem, December 15, 2017, https://doi.org/10.1002/cctc.201701472 Read article

Composite Polymer Colloids for SERS-based Applications

Composite Polymer Colloids for SERS‐based Applications

We review recent progress on the synthesis of gold/polymer composite colloids. The focus lies on composites derived from hydrophobic interactions and those containing smart polymers. Synthesis strategies are discussed and the main features and advantages derived from the combination of polymers and gold nanoparticles are discussed, with a special emphasis towards applications based on SERS.

[Personal Account]
Malte S. Strozyk, Dorleta Jimenez de Aberasturi, Luis M. Liz-Marzán
Chem. Rec., December 14, 2017, https://doi.org/10.1002/tcr.201700082 Read article

Determination of Intimate Composition of Theranostic Polyplexes Based on (Co)Polymers of Poly(vinyl benzyl trimethylammonium chloride)

Determination of Intimate Composition of Theranostic Polyplexes Based on (Co)Polymers of Poly(vinyl benzyl trimethylammonium chloride)

The most typical characterization of nonviral carriers of DNA is by size, size distribution, and ζ potential and very little is known about their detailed composition. Novel nanoparticulate systems that combine properties of condensing, protecting, and transport of genetic material with diagnostic and sensing modalities are developed and investigated by dynamic and static light scattering to establish what the systems really carry.

[Full Paper]
Emi Haladjova, Grigoris Mountrichas, Stergios Pispas, Stanislav Rangelov
Macromol. Chem. Phys., December 11, 2017, https://doi.org/10.1002/macp.201700428 Read article

Gold(I)-Catalyzed C−O/C−C Bond-Forming Domino Reactions and Their Synthetic Applications

Gold(I)‐Catalyzed C−O/C−C Bond‐Forming Domino Reactions and Their Synthetic Applications

[Review]
Filip Bihelovic, Bojan Vulovic, Radomir N. Saicic
Isr. J. Chem., December 11, 2017, https://doi.org/10.1002/ijch.201700033 Read article

Development of New Gold (I)-Catalyzed Carbocyclizations and their Applications in the Synthesis of Natural Products

Development of New Gold (I)‐Catalyzed Carbocyclizations and their Applications in the Synthesis of Natural Products

[Review]
Philippe McGee, Julie Brousseau, Louis Barriault
Isr. J. Chem., November 06, 2017, https://doi.org/10.1002/ijch.201700054 Read article

Cyanido-Bridged FeII–MI Dimetallic Hofmann-Like Spin-Crossover Coordination Polymers Based on 2,6-Naphthyridine

Cyanido‐Bridged FeII–MI Dimetallic Hofmann‐Like Spin‐Crossover Coordination Polymers Based on 2,6‐Naphthyridine

The synthesis, structure, magnetic, and calorimetric spin-crossover (SCO) properties of doubly and triply interlocked iron(II) frameworks based on the bis-monodentate 2,6-naphthyridine ligand are described and discussed in the context of Hofmann-like clathrate SCO compounds.

[Full Paper]
Lucía Piñeiro-López, Francisco Javier-Valverde-Muñoz, Maksym Seredyuk, Carlos Bartual-Murgui, M. Carmen Muñoz, José Antonio Real
Eur. J. Inorg. Chem., October 11, 2017, https://doi.org/10.1002/ejic.201700920 Read article

3-Acrylamidophenylboronic Acid-Modified Hydrogel Film Attached to a Gold Nanosphere Array to Detect Hydrofluoric Acid with Good Selectivity and Recyclability

3‐Acrylamidophenylboronic Acid‐Modified Hydrogel Film Attached to a Gold Nanosphere Array to Detect Hydrofluoric Acid with Good Selectivity and Recyclability

A HF acid sensor with good recyclability and selectivity was fabricated by embedding a 2D Au nanosphere array in a 3-acrylamidophenylboronic acid-functionalized hydrogel film. The volume of hydrogel film swelled with increasing concentration of HF acid, resulting in a red shift of the diffraction wavelength. The concentration of HF acid could be detected by monitoring the wavelength of the diffraction spectra.

[Communication]
Dandan Men, Lifeng Hang, Honghua Zhang, Xiaomin Zhang, Xianjun Lyu, Weiping Cai, Yue Li
ChemNanoMat, October 10, 2017, https://doi.org/10.1002/cnma.201700228 Read article

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