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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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Gold-Doping of Double-Crown Pd Nanoclusters

Gold‐Doping of Double‐Crown Pd Nanoclusters

Double-crown Pd4(PET)8 and Pd5(PET)10 were successfully doped with gold through two Au atoms replacing one Pd atom with the other double-crown structure essentially unchanged. Au4Pd2(PET)8 is the smallest chiral bimetal nanoclusters so far and it bears chirality originating from not only the helixed Au4Pd2S8 framework but also unanimous R or S configuration of sulfur atoms in the enantiomer.

[Full Paper]
Jishi Chen, Liren Liu, Xu Liu, Lingwen Liao, Shengli Zhuang, Shiming Zhou, Jinlong Yang, Zhikun Wu
Chem. Eur. J., November 16, 2017, https://doi.org/10.1002/chem.201704413 Read article

Activation and Deactivation of Gold/Ceria–Zirconia in the Low-Temperature Water–Gas Shift Reaction

Activation and Deactivation of Gold/Ceria–Zirconia in the Low‐Temperature Water–Gas Shift Reaction

After the Gold Rush: Stop–start scanning transmission electron microscopy was used to track gold (Au) species formed during the low-temperature water–gas shift reaction over Au/CeZrO4. Au nanoparticles formed during the heating of the catalyst to reaction temperature agglomerate under reaction conditions. X-ray photoelectron spectroscopy reveals that catalyst deactivation is an outcome of particle agglomeration.

[Communication]
James H. Carter, Xi Liu, Qian He, Sultan Althahban, Ewa Nowicka, Simon J. Freakley, Liwei Niu, David J. Morgan, Yongwang Li, J. W. (Hans) Niemantsverdriet, Stanislaw Golunski, Christopher J. Kiely, Graham J. Hutchings
Angew. Chem. Int. Ed., November 15, 2017, https://doi.org/10.1002/anie.201709708 Read article

Highly Strained Organogold Complexes and Their Gold- or Rhodium-Catalyzed Isomerizations

Highly Strained Organogold Complexes and Their Gold‐ or Rhodium‐Catalyzed Isomerizations

The most strained organogold complexes reported so far were synthesized and investigated by experiment, spectroscopy and theory regarding their reactivity, and their chemical and physical properties. This interesting insight into the chemistry of strained organogold complexes may open up new points of view concerning a variety of modern gold-mediated reactions, often involving strained alkyls.

[Communication]
Florian F. Mulks, Shirin Faraji, Frank Rominger, Andreas Dreuw, A. Stephen K. Hashmi
Chem. Eur. J., November 14, 2017, https://doi.org/10.1002/chem.201704652 Read article

New Architectures for Designed Catalysts: Selective Oxidation using AgAu Nanoparticles on Colloid-Templated Silica

New Architectures for Designed Catalysts: Selective Oxidation using AgAu Nanoparticles on Colloid‐Templated Silica

Colloid-templated porous silica embedded with AgAu bimetallic nanoparticles was utilized for the selective oxidation of methanol to methyl formate. This system demonstrated high conversion efficiency, selectivity, stability, and reproducibility. The modularity of the synthesis establishes a platform for making and testing rationally designed catalysts.

[Full Paper]
Tanya Shirman, Judith Lattimer, Mathilde Luneau, Elijah Shirman, Christian Reece, Michael Aizenberg, Robert J. Madix, Joanna Aizenberg, Cynthia M. Friend
Chem. Eur. J., November 14, 2017, https://doi.org/10.1002/chem.201704552 Read article

Photocatalyst-free, Visible Light Driven, Gold Promoted Suzuki Synthesis of (Hetero)biaryls

Photocatalyst‐free, Visible Light Driven, Gold Promoted Suzuki Synthesis of (Hetero)biaryls

So free, so good. A version of Suzuki cross-coupling is realized by merging visible photoredox catalysis and [AuI] catalysis. The employment of colored and photolabile arylazosulfone as reaction partners enables the biaryl forming protocol to be performed under photocatalyst-free conditions.

[Communication]
Christopher Sauer, Yang Liu, Assunta De Nisi, Stefano Protti, Maurizio Fagnoni, Marco Bandini
ChemCatChem, November 14, 2017, https://doi.org/10.1002/cctc.201701436 Read article

A Metal–Polyphenol Network Coated Nanotheranostic System for Metastatic Tumor Treatments

A Metal–Polyphenol Network Coated Nanotheranostic System for Metastatic Tumor Treatments

A metal–polyphenol network coated nanotheranostic system for metastatic tumor treatments is developed. The theranostic system can inhibit primary tumor and suppress the tumor metastasis effectively with combined photothermal and chemotherapy and the release of polyphenol. Moreover, the system shows superior imaging capability in computerized tomography and magnetic resonance imaging.

[Full Paper]
Jin-Xuan Fan, Di-Wei Zheng, Wen-Wen Mei, Si Chen, Si-Yi Chen, Si-Xue Cheng, Xian-Zheng Zhang
Small, November 10, 2017, https://doi.org/10.1002/smll.201702714 Read article

Gold Nanorods with Silica Shell and PAMAM Dendrimers for Efficient Photothermal Therapy and Low Toxic Codelivery of Anticancer Drug and siRNA

Gold Nanorods with Silica Shell and PAMAM Dendrimers for Efficient Photothermal Therapy and Low Toxic Codelivery of Anticancer Drug and siRNA

The AuNRs@SiO2-G3 nanocomposites with uniform size and excellent stability are prepared by grafting polyamidoamine dendrimers up to third generation onto the surface of mesoporous silica-coated gold nanorods (AuNRs@SiO2) via a divergent technique. They show great potential to be used as a multifunctional nanoplatform to improve photothermal effect with the complement of gene silencing and chemotherapy, which may provide new possibilities for cancer treatment.

[Full Paper]
Qianyu Zhang, Li Wang, Yajun Jiang, Wei Gao, Yinsong Wang, Xiaoying Yang, Xinlin Yang, Zunfeng Liu
Adv. Mater. Interfaces, November 09, 2017, https://doi.org/10.1002/admi.201701166 Read article

Intramolecular Hydroamination by a Primary Amine of an Unactivated Alkene on Gold Nanoclusters: A DFT Study

Intramolecular Hydroamination by a Primary Amine of an Unactivated Alkene on Gold Nanoclusters: A DFT Study

Hydroamination mechanism: Density functional theory calculations have been used to investigate the mechanism of intramolecular hydroamination of unactivated alkenes by using primary amines on gold nanoclusters under aerobic conditions. The olefin activation mechanism was calculated to be the most energetically feasible of the three possible pathways, whereas the amine activation pathway suffered from a high activation barrier.

[Full Paper]
Karan Bobuatong, Hidehiro Sakurai, Masahiro Ehara
ChemCatChem, November 08, 2017, https://doi.org/10.1002/cctc.201700839 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

A Multiparameter pH-Sensitive Nanodevice Based on Plasmonic Nanopores

A Multiparameter pH‐Sensitive Nanodevice Based on Plasmonic Nanopores

Plasmonic nanopores are developed by assembling gold nanoparticles into a gold porous sphere (GPS) on the tip of a glass nanopipette using i-motif DNA as linker molecules. The GPS with clear ionic current rectification, potential response, and strong surface-enhanced Raman scattering properties is used as a multiparameter pH-sensitive nanodevice and successfully applied in probing the regional pH in single cells.

[Full Paper]
Hailing Liu, Qiucen Jiang, Jie Pang, Zeyu Jiang, Jiao Cao, Lina Ji, Xinghua Xia, Kang Wang
Adv. Funct. Mater., November 06, 2017, https://doi.org/10.1002/adfm.201703847 Read article

Self-Assembled Silver–Gold Nanoisland Films on Glass for SERS Applications

Self‐Assembled Silver–Gold Nanoisland Films on Glass for SERS Applications

Depositing extra-thin gold film upon silver nanoislands grown on a glass surface with out-diffusion technique allows both tuning the spectral position of surface plasmon resonance and increasing the efficiency of surface enhanced Raman scattering. The gold coating can also prevent silver nanoislands from degradation in air and isolate analytes from biologically aggressive silver.

[Rapid Research Letter]
Ekaterina Babich, Alexey Redkov, Igor Reduto, Andrey Lipovskii
Phys. Status Solidi RRL, November 03, 2017, https://doi.org/10.1002/pssr.201700226 Read article

One-step Synthesis of AuAg Alloy Nanodots and its Electrochemical Studies towards Nitrobenzene Reduction and Sensing

One‐step Synthesis of AuAg Alloy Nanodots and its Electrochemical Studies towards Nitrobenzene Reduction and Sensing

[Full Paper]
Shanmugam Manivannan, Juwon Jeong, Dong-Ku Kang, Kyuwon Kim
Electroanalysis, November 03, 2017, https://doi.org/10.1002/elan.201700451 Read article

Vapochromic Gold(I)–Silver(I) Cluster Protected by Alkynyl and Phosphine Ligands

Vapochromic Gold(I)–Silver(I) Cluster Protected by Alkynyl and Phosphine Ligands

Vapochromic gold(I)–silver(I) cluster is responsive to coordinative small molecules such as MeOH, Me2CO, and MeCN, and the sensing mechanism is related to the formation of coordination bonding between the silver atom and the molecule of volatile organic compound (VOC).

[Communication]
Zhen Lei, Shan-Shan Chang, Quan-Ming Wang
Eur. J. Inorg. Chem., November 03, 2017, https://doi.org/10.1002/ejic.201701012 Read article

Controlling Non-Equilibrium Structure Formation on the Nanoscale

Controlling Non‐Equilibrium Structure Formation on the Nanoscale

Non-equilibrium structure formation of 10 nm DNA-coated gold nanoparticles is investigated in a binary heterocoagulation process for different stoichiometries. The growth of the nanoparticles could be effectively controlled, resulting in nanoparticle clusters between a few tens of nanometers up to micrometers, which solidifies the idea that this approach represents a scale-free approach. Moreover, the differences in cluster size directly correspond to a change of the optical properties of the nanoparticle suspensions.

[Article]
Benedikt Buchmann, Fabian Manfred Hecht, Carla Pernpeintner, Theobald Lohmueller, Andreas R. Bausch
ChemPhysChem, October 30, 2017, https://doi.org/10.1002/cphc.201700844 Read article

Chiral Amplification by L-Cysteine-Capped Gold Nanoparticles in Lyotropic Chromonic Liquid Crystals

Chiral Amplification by L‐Cysteine‐Capped Gold Nanoparticles in Lyotropic Chromonic Liquid Crystals

An asthma drug reporting chiral amplification: The lyotropic chromonic liquid crystal nematic phase formed by disodium cromoglycate (DSCG) in water is used to elucidate the substantial chiral amplification by chiral L-cysteine-capped gold nanoparticles vs. the neat, non-bound amino acid.

[Communication]
Leah Bergquist, Torsten Hegmann
ChemNanoMat, October 24, 2017, https://doi.org/10.1002/cnma.201700286 Read article

A Dendrimer Supported Electrochemical Immunosensor for the Detection of Alpha-feto protein – a Cancer Biomarker

A Dendrimer Supported Electrochemical Immunosensor for the Detection of Alpha‐feto protein – a Cancer Biomarker

[Full Paper]
Azeez O. Idris, Nonhlangabezo Mabuba, Omotayo A. Arotiba
Electroanalysis, October 23, 2017, https://doi.org/10.1002/elan.201700491 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

A Prostate Specific Antigen Immunosensor Based on Biotinylated-Antibody/Cyclodextrin Inclusion Complex: Fabrication and Electrochemical Studies

A Prostate Specific Antigen Immunosensor Based on Biotinylated‐Antibody/Cyclodextrin Inclusion Complex: Fabrication and Electrochemical Studies

[Full Paper]
Mir F. Mousavi, Masoud Amiri, Abolhassan Noori, Seyyed Mehdi Khoshfetrat
Electroanalysis, October 10, 2017, https://doi.org/10.1002/elan.201700363 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

Towards Ultra-Bright Gold Nanoclusters

Towards Ultra‐Bright Gold Nanoclusters

Strategies to improve the brightness of Au NCs are compared. Traditional approaches exploit size and ligand control and selective replacement of a fraction of gold atoms. Biomolecules as proteins used as template yield biocompatible bright NCs. Aggregation induced emission (AIE), rigidification and the use of light harvesting ligands promise to be intriguing tools for the design of ultra-bright NCs.

[Microreview]
Andrea Cantelli, Gloria Guidetti, Jeannette Manzi, Valeria Caponetti, Marco Montalti
Eur. J. Inorg. Chem., October 06, 2017, https://doi.org/10.1002/ejic.201700735 Read article

Cation- and Solvent-Induced Supramolecular Aggregation Studies of Crown Ether-Containing Dinuclear Alkynylgold(I) Isocyanide Complexes

Cation‐ and Solvent‐Induced Supramolecular Aggregation Studies of Crown Ether‐Containing Dinuclear Alkynylgold(I) Isocyanide Complexes

A new series of crown ether-based dinuclear bis(alkynyl)-bridged gold(I) isocyanide complexes was found to display cation- and solvent-induced supramolecular assembly properties through the switching “on” and “off” of the inter- and intramolecular Au···Au interactions.

[Full Paper]
Frankie Chi-Ming Leung, Vivian Wing-Wah Yam
Eur. J. Inorg. Chem., October 04, 2017, https://doi.org/10.1002/ejic.201700877 Read article

Enhancing Mo:BiVO4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon-Induced Energy Transfer

Enhancing Mo:BiVO4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon‐Induced Energy Transfer

A hybrid Au nanosphere/molybdenum-doped bismuth vanadium oxide (Mo:BiVO4) photoanode interwoven in a hexagonal pattern to investigate the plasmon-induced energy transfer effect on the photoelectrochemical performance of Mo:BiVO4 is described. This study finds that the Au nanosphere array not only increases the light absorption of the photoanode as expected but also improves both its charge transport and charge transfer efficiencies via plasmon induced energy transfer.

[Full Paper]
Jung Kyu Kim, Xinjian Shi, Myung Jin Jeong, Joonsuk Park, Hyun Soo Han, Suk Hyun Kim, Yu Guo, Tony F. Heinz, Shanhui Fan, Chang-Lyoul Lee, Jong Hyeok Park, Xiaolin Zheng
Adv. Energy Mater., October 04, 2017, https://doi.org/10.1002/aenm.201701765 Read article

Electrochemical Detection of Para-nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

[Full Paper]
Koushik Barman, Bishwajit Changmai, Sk Jasimuddin
Electroanalysis, September 29, 2017, https://doi.org/10.1002/elan.201700430 Read article

Controllable Synthesis and Structural Analysis of Nanohybrids with Gold Multipod Nanoparticle Cores and ZIF-67 Shells (GMN@ ZIF-67)

Controllable Synthesis and Structural Analysis of Nanohybrids with Gold Multipod Nanoparticle Cores and ZIF‐67 Shells (GMN@ ZIF‐67)

Gold multipod nanoparticle cores–zeolitic imidazolate framework shells (GMN@ZIF-67) nanohybrids are successfully synthesized and fully characterized. The size of the GMN@ZIF-67 nanohybrids can be adjusted by either varying the molar ratio of ZIF-67 precursors or the quantity of GMNs used.

[Communication]
Hien Duy Mai, Van Cam Thi Le, Thu Minh Thi Pham, Jae-Hyeon Ko, Hyojong Yoo
ChemNanoMat, September 22, 2017, https://doi.org/10.1002/cnma.201700233 Read article

3D Nanoporous Gold with Very Low Parting Limit Derived from Au-Based Metallic Glass and Enhanced Methanol Electro-oxidation Catalytic Performance Induced by Metal Migration

3D Nanoporous Gold with Very Low Parting Limit Derived from Au‐Based Metallic Glass and Enhanced Methanol Electro‐oxidation Catalytic Performance Induced by Metal Migration

3D Nanoporous gold (NPG) was fabricated by facile chemical-dealloying method, through which a novel porous ′cone shaped protrusion′ morphology was formed on the top of a surface. NPG@Pd catalyst was fabricated using this specific topology as a substrate to load Pd thin film and enhance methanol electro-oxidation performance induced by metal migration effect between NPG substrate and Pd thin film.

[Full Paper]
Yi Xu, Pak Man Yiu, Guangcun Shan, Tamaki Shibayama, Seiichi Watanabe, Masato Ohnuma, Wei Huang, Chan-Hung Shek
ChemNanoMat, September 22, 2017, https://doi.org/10.1002/cnma.201700170 Read article

Tannic Acid Modified Electrochemical Biosensor for Glucose Sensing Based on Direct Electrochemistry

Tannic Acid Modified Electrochemical Biosensor for Glucose Sensing Based on Direct Electrochemistry

[Full Paper]
Bekir Çakıroğlu, Mahmut Özacar
Electroanalysis, September 20, 2017, https://doi.org/10.1002/elan.201700420 Read article

Decoration of Nanofibrous Paper Chemiresistors with Dendronized Nanoparticles toward Structurally Tunable Negative-Going Response Characteristics to Human Breathing and Sweating

Decoration of Nanofibrous Paper Chemiresistors with Dendronized Nanoparticles toward Structurally Tunable Negative‐Going Response Characteristics to Human Breathing and Sweating

A nanostructured paper chemiresistor with negative-going response dominant characteristics to human breathing and sweating is demonstrated, which involves decoration of a nanofibrous membrane paper with dendronized gold nanoparticles to enable highly tunable sensitivity in moisture-dominant sensing environment and constitutes a promising new strategy to design sensing array elements for wearable breath and sweat sensors.

[Full Paper]
Shan Yan, Xin Liu, Zakiya Skeete, Ning He, Zhi-Hui Xie, Wei Zhao, Jack P. Lombardi, Kai Liu, Ning Kang, Jin Luo, Benjamin S. Hsiao, Mark Poliks, Ivan Gitsov, Chuan-Jian Zhong
Adv. Mater. Interfaces, September 19, 2017, https://doi.org/10.1002/admi.201700380 Read article

N-Heterocyclic Phosphenium Dihalido-Aurates: On the Borderline between Classical Coordination Compounds and Ion Pairs

N‐Heterocyclic Phosphenium Dihalido‐Aurates: On the Borderline between Classical Coordination Compounds and Ion Pairs

[Article]
Jan Nickolaus, Simon H. Schlindwein, Martin Nieger, Dietrich Gudat
Z. Anorg. Allg. Chem., August 25, 2017, https://doi.org/10.1002/zaac.201700209 Read article

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