1
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Wang T, Tan HS, Wang AJ, Li SS, Feng JJ. Fluorescent metal nanoclusters: From luminescence mechanism to applications in enzyme activity assays. Biosens Bioelectron 2024; 257:116323. [PMID: 38669842 DOI: 10.1016/j.bios.2024.116323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024]
Abstract
Metal nanoclusters (MNCs) have outstanding fluorescence property and biocompatibility, which show widespread applications in biological analysis. Particularly, evaluation of enzyme activity with the fluorescent MNCs has been developed rapidly within the past several years. In this review, we first introduced the fluorescent mechanism of mono- and bi-metallic nanoclusters, respectively, whose interesting luminescence properties are mainly resulted from electron transfer between the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels. Meanwhile, the charge migration within the structure occurs through ligand-metal charge transfer (LMCT) or ligand-metal-metal charge transfer (LMMCT). On such foundation, diverse enzyme activities were rigorously evaluated, including three transferases and nine hydrolases, in turn harvesting rapid research progresses within past 5 years. Finally, we summarized the design strategies for evaluating enzyme activity with the MNCs, presented the major issues and challenges remained in the relevant research, coupled by showing some improvement measures. This review will attract researchers dedicated to the studies of the MNCs and provide some constructive insights for their further applications in enzyme analysis.
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Affiliation(s)
- Tong Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Hong-Sheng Tan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shan-Shan Li
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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2
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Pei W, Hou L, Yang J, Zhou S, Zhao J. Doping-mediated excited state dynamics of diphosphine-protected M@Au 12 (M = Au, Ir) superatom nanoclusters. NANOSCALE 2024; 16:14081-14088. [PMID: 39004999 DOI: 10.1039/d4nr02051k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Doping heterometal atoms into ligand-protected gold superatom nanoclusters (Aun NCs) is proposed to further diversify their geometrical and electronic structures and enhance their photoluminescence properties, which is attributed to the mixing and effects between atoms. However, the fundamental principles that govern the optoelectronic properties of the doped Aun NCs remain elusive. Herein, we systematically explored two prototypical 8-electron Aun (n = 11 and 13) NCs with and without Ir dopant atoms using comprehensive ab initio calculations and real-time nonadiabatic molecular dynamics simulations. These doped Aun NCs maintain their parent geometrical structures and 8-electron superatomic configuration (1S21P6). Strong core-shell (Ir-Aun) electronic coupling significantly expands the energy gap, resulting in a weak nonadiabatic coupling matrix element, which in turn increases the carrier lifetime. This increase is mainly governed by the low-frequency vibration mode. We uncovered the relationship between electronic structures, electron-vibration, and carrier dynamics for these doped Aun NCs. These calculated results provide crucial insights for the atomically precise design of metal NCs with superior optoelectronic properties.
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Affiliation(s)
- Wei Pei
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Lei Hou
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Jing Yang
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Si Zhou
- Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics, South China Normal University, Guangzhou 510006, China.
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
| | - Jijun Zhao
- Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics, South China Normal University, Guangzhou 510006, China.
- Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, South China Normal University, Guangzhou 510006, China
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3
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Tan Y, Sun G, Jiang T, Liu D, Li Q, Yang S, Chai J, Gao S, Yu H, Zhu M. Symmetry Breaking Enhancing the Activity of Electrocatalytic CO 2 Reduction on an Icosahedron-Kernel Cluster by Cu Atoms Regulation. Angew Chem Int Ed Engl 2024; 63:e202317471. [PMID: 38072830 DOI: 10.1002/anie.202317471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Indexed: 12/19/2023]
Abstract
Recently, CO2 hydrogenation had a new breakthrough resulting from the design of catalysts to effectively activate linear CO2 with symmetry-breaking sites. However, understanding the relationship between symmetry-breaking sites and catalytic activity at the atomic level is still a great challenge. In this study, a set of gold-copper alloy Au13 Cux (x=0-4) nanoclusters were used as research objects to show the symmetry-controlled breaking structure on the surface of nanoclusters with the help of manipulability of the Cu atoms. Among them, Au13 Cu3 nanocluster displays the highest degree of symmetry-breaking on its crystal structure compared with the other nanoclusters in the family. Where the three copper atoms occupying the surface of the icosahedral kernel unevenly with one copper atom is coordinately unsaturated (CuS2 motif relative to CuS3 motif). As expected, Au13 Cu3 has an excellent hydrogenation activity of CO2 , in which the current density is as high as 70 mA cm-2 (-0.97 V) and the maximum FECO reaches 99 % at -0.58 V. Through the combination of crystal structures and theoretical calculations, the excellent catalytic activity of Au13 Cu3 is revealed to be indeed closely related to its asymmetric structure.
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Affiliation(s)
- Yesen Tan
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Guilin Sun
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Tingting Jiang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Dong Liu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Qinzhen Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Sha Yang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Jinsong Chai
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Shan Gao
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Haizhu Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, 230601, Hefei, China
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4
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Zou X, Kang X, Zhu M. Recent developments in the investigation of driving forces for transforming coinage metal nanoclusters. Chem Soc Rev 2023; 52:5892-5967. [PMID: 37577838 DOI: 10.1039/d2cs00876a] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Metal nanoclusters serve as an emerging class of modular nanomaterials. The transformation of metal nanoclusters has been fully reflected in their studies from every aspect, including the structural evolution analysis, physicochemical property regulation, and practical application promotion. In this review, we highlight the driving forces for transforming atomically precise metal nanoclusters and summarize the related transforming principles and fundamentals. Several driving forces for transforming nanoclusters are meticulously reviewed herein: ligand-exchange-induced transformations, metal-exchange-induced transformations, intercluster reactions, photochemical transformations, oxidation/reduction-induced transformations, and other factors (intrinsic instability, pH, temperature, and metal salts) triggering transformations. The exploitation of transforming principles to customize the preparations, structures, physicochemical properties, and practical applications of metal nanoclusters is also disclosed. At the end of this review, we provide our perspectives and highlight the challenges remaining for future research on the transformation of metal nanoclusters. Our intended audience is the broader scientific community interested in metal nanoclusters, and we believe that this review will provide researchers with a comprehensive synthetic toolbox and insights on the research fundamentals needed to realize more cluster-based nanomaterials with customized compositions, structures, and properties.
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Affiliation(s)
- Xuejuan Zou
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
| | - Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
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5
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Liao JH, Chiu TH, Liang H, Kahlal S, Saillard JY, Liu CW. Galvanic replacement-induced introduction of a heteroligand into bimetallic and trimetallic nanoclusters. NANOSCALE 2023; 15:6121-6125. [PMID: 36919780 DOI: 10.1039/d3nr00509g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Heteroleptic 8-electron silver-rich alloy nanoclusters, [Au@Au4Ag12(dtp)7(PPh3)4]2+ (1) and [Pt@Au4Ag11(dtp)7(PPh3)4] (2), were successfully synthesized via a galvanic replacement reaction of 1,1-dithiolate-protected M@Ag20 (M = Au and Pt) nanoclusters with Au(I)-phosphine salts, leading to the alteration of the cluster nuclearity and geometry of shell skeletons but retaining the same 8-electron count.
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Affiliation(s)
- Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, Hualien 97401, Taiwan, Republic of China.
| | - Tzu-Hao Chiu
- Department of Chemistry, National Dong Hwa University, Hualien 97401, Taiwan, Republic of China.
| | - Hao Liang
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France.
| | - Samia Kahlal
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France.
| | | | - C W Liu
- Department of Chemistry, National Dong Hwa University, Hualien 97401, Taiwan, Republic of China.
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6
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First Principal Study of Interaction of Copper Doped Gold Nanoclusters with Glycine. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Chatterjee J, Chatterjee A, Hazra P. Intrinsic-to-extrinsic emission tuning in luminescent Cu nanoclusters by in situ ligand engineering. Phys Chem Chem Phys 2021; 23:25850-25865. [PMID: 34763350 DOI: 10.1039/d1cp03596g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhancement of the emission quantum yield and expansion of the emission tunability spectrum are the key aspects of an emitter, which direct the evolution of future generation light harvesting materials. In this regard, small molecular ligand-protected Cu nanoclusters (SLCuNCs) have emerged as prospective candidates. Herein, we report the broadband emission tunability in a SLCuNC system, mediated by in situ ligand replacement. 1,6-Hexanedithiol-protected blue emissive discrete Cu nanoclusters (CuNCs) and red emissive CuNC assemblies have been synthesized in one pot. The red emissive CuNC assemblies were characterized and found to be covalently-linked nanocluster superstructures. The blue emissive CuNC was further converted to a green-yellow emissive CuNC over time by a ligand replacement process, which was mediated by the oxidized form of the reducing agent used for synthesizing the blue emissive nanocluster. Steady-state emission results and fluorescence dynamics studies were used to elucidate that the ligand replacement process not only modulates the emission color but also alters the nature of emission from metal-centered intrinsic to ligand-centered extrinsic emission. Moreover, time-dependent blue to green-yellow emission tunability was demonstrated under optimized reaction conditions.
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Affiliation(s)
- Joy Chatterjee
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune - 411008, Maharashtra, India.
| | - Abhijit Chatterjee
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune - 411008, Maharashtra, India.
| | - Partha Hazra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune - 411008, Maharashtra, India. .,Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhaba Road, Pashan, Pune - 411008, Maharashtra, India
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8
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Li Y, Zhou M, Jin R. Programmable Metal Nanoclusters with Atomic Precision. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006591. [PMID: 33984169 DOI: 10.1002/adma.202006591] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/26/2020] [Indexed: 06/12/2023]
Abstract
With the recent establishment of atomically precise nanochemistry, capabilities toward programmable control over the nanoparticle size and structure are being developed. Advances in the synthesis of atomically precise nanoclusters (NCs, 1-3 nm) have been made in recent years, and more importantly, their total structures (core plus ligands) have been mapped out by X-ray crystallography. These ultrasmall Au nanoparticles exhibit strong quantum-confinement effect, manifested in their optical absorption properties. With the advantage of atomic precision, gold-thiolate nanoclusters (Aun (SR)m ) are revealed to contain an inner kernel, Au-S interface (motifs), and surface ligand (-R) shell. Programming the atomic packing into various crystallographic structures of the metal kernel can be achieved, which plays a significant role in determining the optical properties and the energy gap (Eg ) of NCs. When the size increases, a general trend is observed for NCs with fcc or decahedral kernels, whereas those NCs with icosahedral kernels deviate from the general trend by showing comparably smaller Eg . Comparisons are also made to further demonstrate the more decisive role of the kernel structure over surface motifs based on isomeric Au NCs and NC series with evolving kernel or motif structures. Finally, future perspectives are discussed.
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Affiliation(s)
- Yingwei Li
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Meng Zhou
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
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9
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Omoda T, Takano S, Tsukuda T. Toward Controlling the Electronic Structures of Chemically Modified Superatoms of Gold and Silver. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2001439. [PMID: 32696588 DOI: 10.1002/smll.202001439] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Atomically precise gold/silver clusters protected by organic ligands L, [(Au/Ag)x Ly ]z , have gained increasing interest as building units of functional materials because of their novel photophysical and physicochemical properties. The properties of [(Au/Ag)x Ly ]z are intimately associated with the quantized electronic structures of the metallic cores, which can be viewed as superatoms from the analogy of naked Au/Ag clusters. Thus, establishment of the correlation between the geometric and electronic structures of the superatomic cores is crucial for rational design and improvement of the properties of [(Au/Ag)x Ly ]z . This review article aims to provide a qualitative understanding on how the electronic structures of [(Au/Ag)x Ly ]z are affected by geometric structures of the superatomic cores with a focus on three factors: size, shape, and composition, on the basis of single-crystal X-ray diffraction data. The knowledge accumulated here will constitute a basis for the development of ligand-protected Au/Ag clusters as new artificial elements on a nanometer scale.
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Affiliation(s)
- Tsubasa Omoda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shinjiro Takano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto, 615-8520, Japan
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10
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Ren X, Fu X, Lin X, Tang J, Wang H, Liu C, Huang J. Location of Cu Atom in Au‐Based Nanocluster and Its Optical Properties. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiuqing Ren
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Xuemei Fu
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xinzhang Lin
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jie Tang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - He Wang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Chao Liu
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jiahui Huang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
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Chakraborty S, Mukherjee S. Role of Small Moiety of a Large Ligand: Tyrosine Templated Copper Nanoclusters. J Phys Chem Lett 2021; 12:3266-3273. [PMID: 33764772 DOI: 10.1021/acs.jpclett.1c00245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To explore the underlying formation mechanism of luminescent metal nanoclusters (NCs) using a small moiety such as amino acids (outside the milieu of a protein environment) as templates, herein we report blue-emitting copper nanoclusters (CuNCs) using l-tyrosine (l-Tyr) as a capping agent as well as a reducing agent. We also demonstrate the effect of an in situ fibrillation of Tyr on the luminescence and structural properties of NCs. Fluorescence studies along with microscopic imaging revealed the rapid formation of a dityrosine (di-Tyr) moiety in an alkaline medium followed by an aggregated "Tamarix dioica leaf"-like fibrillar pattern along with CuNCs. Our present investigation delineates the role played by π-π interactions in the formation of the fibrillar structures. We substantiated the fundamentals of using a small molecule of a large ligand that can serve as a template and also show how these NCs once formed destroy the fibrils of di-Tyr as a function of time.
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Affiliation(s)
- Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462 066, Madhya Pradesh, India
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12
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Xu H, Han YZ, OuYang J, Chen ZC, Chen HJ, Nie HH, Tang Z, Yang SY, Huang RB, Zheng LS, Teo BK. Dissection of bicapped octahedral copper hydride cluster to form two chiral tetrahedral copper hydride cluster series exhibiting auto deracemization and photoluminescence. Dalton Trans 2021; 50:4028-4035. [PMID: 33662080 DOI: 10.1039/d1dt00031d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Three series of copper hydride clusters [Cu8H6L6]2+ (1), [Cu4HX2L4]+ where X- = Cl- (2a), Br- (2b), I- (2c), N3- (2d) and SCN- (2e), and [Cu4HX3L3] where X- = Br- (3b) and I- (3c) (L = 2-(diphenylphosphino)pyridine, dppy) were synthesized and characterized by single-crystal X-Ray crystallography and standard spectroscopic techniques. The metal core of 1, Cu8, can be described as a bicapped octahedron, while those of 2 and 3 series adopt tetrahedral structures. The hydride positions were deduced from difference electron density maps and corroborated by NMR and DFT calculations. For 1, there are two μ4-H-, one each in the two tetrahedral cavities of the two capping atoms and four μ3-H- on the six triangular faces around the waist of the octahedron. For [Cu4HX2L4]+ and [Cu4HX3L3] series, the single μ4-H- resides in the center of the Cu4 tetrahedron. It was found that these three series of copper clusters are intimately connected and can convert from one to another under specific reaction conditions. Their transformation pathways were investigated in detail. Spontaneous resolution to form optically pure enantiomeric single crystals was observed for [Cu4H(SCN)2L4]+ (2e) and [Cu4HBr3L3] (3b). Photoluminescence was observed for [Cu4HX2L4]+, as well as [Cu4HX3L3] with strong emissions from green to yellow regions.
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Affiliation(s)
- Han Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy materials, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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13
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He W, Zhou Z, Han Z, Li S, Zhou Z, Ma L, Zang S. Ultrafast Size Expansion and Turn‐On Luminescence of Atomically Precise Silver Clusters by Hydrogen Sulfide. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100006] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wei‐Miao He
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhe Zhou
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhen Han
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Si Li
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhan Zhou
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
- Henan Key Laboratory of Function-Oriented Porous Materials College of Chemistry and Chemical Engineering Luoyang Normal University Luoyang 471934 China
| | - Lu‐Fang Ma
- Henan Key Laboratory of Function-Oriented Porous Materials College of Chemistry and Chemical Engineering Luoyang Normal University Luoyang 471934 China
| | - Shuang‐Quan Zang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
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14
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He W, Zhou Z, Han Z, Li S, Zhou Z, Ma L, Zang S. Ultrafast Size Expansion and Turn‐On Luminescence of Atomically Precise Silver Clusters by Hydrogen Sulfide. Angew Chem Int Ed Engl 2021; 60:8505-8509. [DOI: 10.1002/anie.202100006] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Wei‐Miao He
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhe Zhou
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhen Han
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Si Li
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
| | - Zhan Zhou
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
- Henan Key Laboratory of Function-Oriented Porous Materials College of Chemistry and Chemical Engineering Luoyang Normal University Luoyang 471934 China
| | - Lu‐Fang Ma
- Henan Key Laboratory of Function-Oriented Porous Materials College of Chemistry and Chemical Engineering Luoyang Normal University Luoyang 471934 China
| | - Shuang‐Quan Zang
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001 China
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15
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Takano S, Tsukuda T. Chemically Modified Gold/Silver Superatoms as Artificial Elements at Nanoscale: Design Principles and Synthesis Challenges. J Am Chem Soc 2021; 143:1683-1698. [DOI: 10.1021/jacs.0c11465] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinjiro Takano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
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16
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Li Y, Higaki T, Du X, Jin R. Chirality and Surface Bonding Correlation in Atomically Precise Metal Nanoclusters. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905488. [PMID: 32181554 DOI: 10.1002/adma.201905488] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/16/2019] [Indexed: 05/24/2023]
Abstract
Chirality is ubiquitous in nature and occurs at all length scales. The development of applications for chiral nanostructures is rising rapidly. With the recent achievements of atomically precise nanochemistry, total structures of ligand-protected Au and other metal nanoclusters (NCs) are successfully obtained, and the origins of chirality are discovered to be associated with different parts of the cluster, including the surface ligands (e.g., swirl patterns), the organic-inorganic interface (e.g., helical stripes), and the kernel. Herein, a unified picture of metal-ligand surface bonding-induced chirality for the nanoclusters is proposed. The different bonding modes of M-X (where M = metal and X = the binding atom of ligand) lead to different surface structures on nanoclusters, which in turn give rise to various characteristic features of chirality. A comparison of Au-thiolate NCs with Au-phosphine ones further reveals the important roles of surface bonding. Compared to the Au-thiolate NCs, the Ag/Cu/Cd-thiolate systems exhibit different coordination modes between the metal and the thiolate. Other than thiolate and phosphine ligands, alkynyls are also briefly discussed. Several methods of obtaining chiroptically active nanoclusters are introduced, such as enantioseparation by high-performance liquid chromatography and enantioselective synthesis. Future perspectives on chiral NCs are also proposed.
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Affiliation(s)
- Yingwei Li
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Tatsuya Higaki
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Xiangsha Du
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
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17
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Lv Y, Zhao R, Weng S, Yu H. Core Charge Density Dominated Size‐Conversion from Au
6
P
8
to Au
8
P
8
Cl
2. Chemistry 2020; 26:12382-12387. [DOI: 10.1002/chem.202002617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/16/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Ying Lv
- Department of Chemistry and Centre for Atomic Engineering of, Advanced Materials Anhui Province Key Laboratory of Chemistry for, Inorganic/Organic Hybrid Functionalized Materials Key Laboratory of, Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei Anhui 230601 P. R. China
| | - Ruoya Zhao
- Department of Chemistry and Centre for Atomic Engineering of, Advanced Materials Anhui Province Key Laboratory of Chemistry for, Inorganic/Organic Hybrid Functionalized Materials Key Laboratory of, Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei Anhui 230601 P. R. China
| | - Shiyin Weng
- Department of Chemistry and Centre for Atomic Engineering of, Advanced Materials Anhui Province Key Laboratory of Chemistry for, Inorganic/Organic Hybrid Functionalized Materials Key Laboratory of, Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei Anhui 230601 P. R. China
| | - Haizhu Yu
- Department of Chemistry and Centre for Atomic Engineering of, Advanced Materials Anhui Province Key Laboratory of Chemistry for, Inorganic/Organic Hybrid Functionalized Materials Key Laboratory of, Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei Anhui 230601 P. R. China
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui 230601 P. R. China
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18
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Kang X, Li Y, Zhu M, Jin R. Atomically precise alloy nanoclusters: syntheses, structures, and properties. Chem Soc Rev 2020; 49:6443-6514. [PMID: 32760953 DOI: 10.1039/c9cs00633h] [Citation(s) in RCA: 287] [Impact Index Per Article: 71.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal nanoclusters fill the gap between discrete atoms and plasmonic nanoparticles, providing unique opportunities for investigating the quantum effects and precise structure-property correlations at the atomic level. As a versatile strategy, alloying can largely improve the physicochemical performances compared to the corresponding homo-metal nanoclusters, and thus benefit the applications of such nanomaterials. In this review, we highlight the achievements of atomically precise alloy nanoclusters, and summarize the alloying principles and fundamentals, including the synthetic methods, site-preferences for different heteroatoms in the templates, and alloying-induced structure and property changes. First, based on various Au or Ag nanocluster templates, heteroatom doping modes are presented. The templates with electronic shell-closing configurations tend to maintain their structures during doping, while the others may undergo transformation and give rise to alloy nanoclusters with new structures. Second, alloy nanoclusters of specific magic sizes are reviewed. The arrangement of different atoms is related to the symmetry of the structures; that is, different atoms are symmetrically located in the nanoclusters of smaller sizes, and evolve into shell-by-shell structures at larger sizes. Then, we elaborate on the alloying effects in terms of optical, electrochemical, electroluminescent, magnetic and chiral properties, as well as the stability and reactivity via comparisons between the doped nanoclusters and their homo-metal counterparts. For example, central heteroatom-induced photoluminescence enhancement is emphasized. The applications of alloy nanoclusters in catalysis, chemical sensing, bio-labeling, and other fields are further discussed. Finally, we provide perspectives on existing issues and future efforts. Overall, this review provides a comprehensive synthetic toolbox and controllable doping modes so as to achieve more alloy nanoclusters with customized compositions, structures, and properties for applications. This review is based on publications available up to February 2020.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
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19
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Anumula R, Reber AC, An P, Cui C, Guo M, Wu H, Luo Z, Khanna SN. Ligand accommodation causes the anti-centrosymmetric structure of Au 13Cu 4 clusters with near-infrared emission. NANOSCALE 2020; 12:14801-14807. [PMID: 32627782 DOI: 10.1039/d0nr02448a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We synthesized an [Au13Cu4(PPh3)4(SPy)8]+ nanocluster co-capped by phosphine and thiolate ligands. Interestingly, this Au13Cu4 cluster corresponds to an anti-centrosymmetric structure with the four copper atoms coordinated to the mixed ligands on the same side of the Au13 icosahedron, which is in sharp contrast to the [Au13Cu4(PPh2Py)4(SPhtBu)8]+ and [Au13Cu2(PPh3)6(SPy)6]+ clusters which possess highly symmetric structures with well-separated Cu adatoms. Both [Au13Cu4(PPh3)4(SPy)8]+ and [Au13Cu2(PPh3)6(SPy)6]+ clusters correspond to 8 valence electron superatoms with large HOMO-LUMO gaps, respectively. The difference in structure is rooted in the nature of the mixed ligands, with the bidentate SPy binding strongly to Cu on both binding sites (-N-Cu and Au-SR-Cu) leading to the co-linking of adjacent Cu atoms, while the bidentate PPh2Py binds Cu on one site and Au on the other giving rise to a separation of the Cu atoms even in the presence of relatively higher monomer concentration. Both [Au13Cu4(PPh3)4(SPy)8]+ and [Au13Cu2(PPh3)6(SPy)6]+ display emissions in the near-IR regions. TD-DFT calculations reproduce the spectroscopic results with specified excited states, shedding light on the geometric and electronic behaviors of the ligand-protected Au13Mx clusters.
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Affiliation(s)
- Rajini Anumula
- Beijing National Laboratory for Molecular Sciences (BNLMS) and State Key Laboratory for Structural Chemistry of Unstable and Stable Species, and Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.
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20
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Basu S, Gayen C, Dolai S, Paul A. Tailoring the luminescence of atomic clusters via ligand exchange reaction mediated post synthetic modification. Phys Chem Chem Phys 2020; 22:3959-3964. [PMID: 32022051 DOI: 10.1039/c9cp06063d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The growing prominence of atomic nanoclusters in fields of practical relevance has made modulation of their luminescent characteristics an important challenge for their future applications. Herein we report chemical reaction assisted modulation of luminescence of histidine stabilized gold nanoclusters via a ligand exchange reaction with cysteine. Upon addition of 3.8 mM cysteine, as evinced by X-ray photoelectron spectroscopy in conjunction with transmission electron microscopic analyses, histidine molecules were found to desorb from the surface of the Au NCs leading to the latter's aggregation into macroscopic units. Consequently, the luminescence of the His Au NCs underwent a large bathochromic shift from 475 nm to 500 nm with a concomitant decrease in the luminescence intensity. Thereafter, upon addition of 18 mM cysteine to a dispersion of His Au NCs, cysteine molecules by virtue of strong aurophilic interactions were found to adsorb on to the surface of the Au NCs, leading to the disaggregation of the macroscopic structures. This was accompanied by restoration of the luminescence features of the Au NCs to an emission maximum of 486 nm with partial recovery of the luminescence intensity. Thus, the work embodied herein demonstrates post-synthetic chemical reactions of nanoclusters as an effective and viable tool for tailoring the photoluminescence of atomic clusters to meet application demands.
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Affiliation(s)
- Srestha Basu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
| | - Chirantan Gayen
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
| | - Santanu Dolai
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
| | - Anumita Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
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21
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Zhou C, Li H, Song Y, Ke F, Xu WW, Zhu M. Insights into the effect of surface coordination on the structure and properties of Au 13Cu 2 nanoclusters. NANOSCALE 2019; 11:19393-19397. [PMID: 31329204 DOI: 10.1039/c9nr04457d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Comparable systems are of great significance for understanding the structure-property relationship. Herein, a new Au13Cu2 nanocluster protected by phenylethanethiol (PET) and triphenylphosphine (TPP) is synthesized and structurally determined, including an icosahedral Au13 and two CuS3 configurations. Based on previous work, a comparable system was formed-only the surface coordination of Cu atoms changes from Cu-N to Cu-S, which results in a tremendous change in the optical properties. Based on this, the effect of the coordination mode on the structure and optical properties was primarily investigated in both experiment and theory. And the results demonstrate that changing the coordination mode from Cu-N to Cu-S has a significant effect on the electronic structure. This work will offer new insights into ligand engineering.
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Affiliation(s)
- Chuanjun Zhou
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Hao Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Yongbo Song
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Feng Ke
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Wen Wu Xu
- School of Physical Science and Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
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22
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Kang X, Zhu M. Metal Nanoclusters Stabilized by Selenol Ligands. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902703. [PMID: 31482648 DOI: 10.1002/smll.201902703] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/25/2019] [Indexed: 06/10/2023]
Abstract
The past decades have witnessed great advances in controllable synthesis, structure determination, and property investigation of metal nanoclusters. Selenolated nanoclusters, a special branch in the nanocluster family, have attracted great interest in these years. The electronegativity and atomic radius of selenium is different from sulfur, and thus the selenolated nanoclusters are anticipated to display different electronic/geometric structures and distinct chemical/physical properties relative to their thiolated analogues. This review covers the syntheses, structures, and properties of selenolated nanoclusters (including Au, Ag, Cu, and alloy nanoclusters). Ligand effects (between SeR and SR) on nanocluster properties, including optical absorption, stability, and electrochemical properties, are disclosed as well. At the end of the review, a scope for improvements and future perspectives of selenolated nanoclusters is highlighted. The review hopefully opens up new horizons for cluster scientists to synthesize more selenolated nanoclusters with novel structures and properties. This review is based on publications available up to May 2019.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui, 230601, China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui, 230601, China
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23
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Zeng C, Weitz A, Withers G, Higaki T, Zhao S, Chen Y, Gil RR, Hendrich M, Jin R. Controlling magnetism of Au 133(TBBT) 52 nanoclusters at single electron level and implication for nonmetal to metal transition. Chem Sci 2019; 10:9684-9691. [PMID: 32015802 PMCID: PMC6977549 DOI: 10.1039/c9sc02736j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/04/2019] [Indexed: 12/14/2022] Open
Abstract
The [Au133(SR)52]q nanocluster is discovered to possess one spin per particle when q = 0, but no unpaired electron when q = +1.
The transition from the discrete, excitonic state to the continuous, metallic state in thiolate-protected gold nanoclusters is of fundamental interest and has attracted significant efforts in recent research. Compared with optical and electronic transition behavior, the transition in magnetism from the atomic gold paramagnetism (Au 6s1) to the band behavior is less studied. In this work, the magnetic properties of 1.7 nm [Au133(TBBT)52]0 nanoclusters (where TBBT = 4-tert-butylbenzenethiolate) with 81 nominal “valence electrons” are investigated by electron paramagnetic resonance (EPR) spectroscopy. Quantitative EPR analysis shows that each cluster possesses one unpaired electron (spin), indicating that the electrons fill into discrete orbitals instead of a continuous band, for that one electron in the band would give a much smaller magnetic moment. Therefore, [Au133(TBBT)52]0 possesses a nonmetallic electronic structure. Furthermore, we demonstrate that the unpaired spin can be removed by oxidizing [Au133(TBBT)52]0 to [Au133(TBBT)52]+ and the nanocluster transforms from paramagnetism to diamagnetism accordingly. The UV-vis absorption spectra remain the same in the process of single-electron loss or addition. Nuclear magnetic resonance (NMR) is applied to probe the charge and magnetic states of Au133(TBBT)52, and the chemical shifts of 52 surface TBBT ligands are found to be affected by the spin in the gold core. The NMR spectrum of Au133(TBBT)52 shows a 13-fold splitting with 4-fold degeneracy of 52 TBBT ligands, which are correlated to the quasi-D2 symmetry of the ligand shell. Overall, this work provides important insights into the electronic structure of Au133(TBBT)52 by combining EPR, optical and NMR studies, which will pave the way for further understanding of the transition behavior in metal nanoclusters.
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Affiliation(s)
- Chenjie Zeng
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Andrew Weitz
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Gayathri Withers
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Tatsuya Higaki
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Shuo Zhao
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Yuxiang Chen
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Roberto R Gil
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Michael Hendrich
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
| | - Rongchao Jin
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Ave , Pittsburgh , PA , USA . ;
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24
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Li Y, Hu Y, He Y, Ge Y, Song G, Zhou J. Sensitive Naked‐eye and Fluorescence Determination of Acetylcholinesterase Activity using Cu/Ag Nanoclusters Based on Inner Filter Effect. ChemistrySelect 2019. [DOI: 10.1002/slct.201901714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanyue Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei University Wuhan 430062 China
| | - Yanling Hu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei University Wuhan 430062 China
| | - Yu He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei University Wuhan 430062 China
| | - Yili Ge
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei University Wuhan 430062 China
| | - Gongwu Song
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei University Wuhan 430062 China
| | - Jiangang Zhou
- Hubei Province Key Laboratory of Regional Development and Environment Response Wuhan 430062 China
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25
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Song Y, Weng S, Li H, Yu H, Zhu M. The Structure of a Au7Cu12 Bimetal Nanocluster and Its Strong Emission. Inorg Chem 2019; 58:7136-7140. [DOI: 10.1021/acs.inorgchem.9b00547] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yongbo Song
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Shiyin Weng
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Hao Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Haizhu Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
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26
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Li H, Song Y, Lv Y, Yun Y, Lv X, Yu H, Zhu M. Unexpected Observation of Heavy Monomeric Motifs in a Basket-like Au26Ag22 Nanocluster. Inorg Chem 2018; 58:1724-1727. [DOI: 10.1021/acs.inorgchem.8b01990] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hao Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Yongbo Song
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Ying Lv
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Yapei Yun
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Xinrou Lv
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Haizhu Yu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Manzhou Zhu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials & AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
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27
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Xi XJ, Yang JS, Wang JY, Dong XY, Zang SQ. New stable isomorphous Ag 34 and Ag 33Au nanoclusters with an open shell electronic structure. NANOSCALE 2018; 10:21013-21018. [PMID: 30427029 DOI: 10.1039/c8nr07714b] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A novel atom-precise 3-electron homosilver nanocluster (Ag34) has been assembled for the first time by the oxidation of a thiol. When adding AuPPh3Cl in the reaction, we obtained an alloyed Ag33Au nanocluster, which shares a similar framework as that of Ag34, in which a doping Au atom replaced a core silver atom. Notably, both Ag34 and alloyed Ag33Au demonstrated exceptional stability in solution and solid state over 3 months, which is difficult to explain by using the superatom model. Such Ag34 and Ag33Au complexes complement the nanoclusters with an open shell electronic structure and unveil a new approach to synthesize monodisperse nanoclusters under mild conditions.
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Affiliation(s)
- Xiao-Juan Xi
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.
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