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D'Antoni P, Sementa L, Bonacchi S, Reato M, Maran F, Fortunelli A, Stener M. Combined experimental and computational study of the photoabsorption of the monodoped and nondoped nanoclusters Au 24Pt(SR) 18, Ag 24Pt(SR) 18, and Ag 25(SR) 18. Phys Chem Chem Phys 2024; 26:17569-17576. [PMID: 38867581 DOI: 10.1039/d4cp00789a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Assessing the accuracy of first-principles computational approaches is instrumental to predict electronic excitations in metal nanoclusters with quantitative confidence. Here we describe a validation study on the optical response of a set of monolayer-protected clusters (MPC). The photoabsorption spectra of Ag25(DMBT)18-, Ag24Pt(DMBT)182- and Au24Pt(SC4H9)18, where DMBT is 2,4-dimethylbenzenethiolate and SC4H9 is n-butylthiolate, have been obtained at low temperature and compared with accurate TDDFT calculations. An excellent match between theory and experiment, with typical deviations of less than 0.1 eV, was obtained, thereby validating the accuracy and reliability of the proposed computational framework. Moreover, an analysis of the TDDFT simulations allowed us to ascribe all relevant spectral features to specific transitions between occupied/virtual orbital pairs. The doping effect of Pt on the optical response of these ultrasmall MPC systems was identified and discussed.
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Affiliation(s)
- Pierpaolo D'Antoni
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy.
| | - Luca Sementa
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, Via Giuseppe Moruzzi 1, I-56124 Pisa, Italy.
| | - Sara Bonacchi
- Department of Chemistry, University of Padova, Via Marzolo 1, I-35131 Padova, Italy.
| | - Mattia Reato
- Department of Chemistry, University of Padova, Via Marzolo 1, I-35131 Padova, Italy.
| | - Flavio Maran
- Department of Chemistry, University of Padova, Via Marzolo 1, I-35131 Padova, Italy.
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, USA
| | - Alessandro Fortunelli
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, Via Giuseppe Moruzzi 1, I-56124 Pisa, Italy.
| | - Mauro Stener
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy.
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2
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Cluster formation between an oxadiazole derivative with metal nanoclusters (Ag/Au/Cu), graphene quantum dot sheets, SERS studies, and solvent effects. Struct Chem 2022. [DOI: 10.1007/s11224-022-02052-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Evidence of cluster formation of pyrrole with mixed silver metal clusters, Agx-My (x = 4,5, y = 2/1 and M = Au/Ni/Cu) using DFT/SERS analysis. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113569] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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4
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Al-Otaibi JS, Mary YS, Mary YS, Ullah Z, Kwon HW. Adsorption behavior and solvent effects of an adamantane-triazole derivative on metal clusters – DFT simulation studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118242] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Patty JB, Havenridge S, Tietje-Mckinney D, Siegler MA, Singh KK, Hajy Hosseini R, Ghabin M, Aikens CM, Das A. Crystal Structure and Optical Properties of a Chiral Mixed Thiolate/Stibine-Protected Au 18 Cluster. J Am Chem Soc 2021; 144:478-484. [PMID: 34957826 DOI: 10.1021/jacs.1c10778] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the first example of a chiral mixed thiolate/stibine-protected gold cluster, formulated as Au18(S-Adm)8(SbPh3)4Br2 (where S-Adm = 1-adamantanethiolate). Single crystal X-ray crystallography reveals the origin of chirality in the cluster to be the introduction of the rotating arrangement of Au2(S-Adm)3 and Au(S-Adm)2 staple motifs on an achiral Au13 core and the subsequent capping of the remaining gold atoms by SbPh3 and Br- ligands. Interestingly, the structure and properties of this new Au18 cluster are found to be different from other reported achiral Au18 clusters and the only other stibine-protected [Au13(SbPh3)8Cl4]+ cluster. Detailed analyses on the geometric and electronic structures of the new cluster are carried out to gain insights into its optical properties as well as reactivity and stability of such mixed monolayer-protected clusters.
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Affiliation(s)
- Justin B Patty
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Shana Havenridge
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Dylan Tietje-Mckinney
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Kundan K Singh
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Roumina Hajy Hosseini
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Mohamed Ghabin
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Christine M Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Anindita Das
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
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6
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Medves M, Sementa L, Toffoli D, Fronzoni G, Krishnadas KR, Bürgi T, Bonacchi S, Dainese T, Maran F, Fortunelli A, Stener M. Predictive optical photoabsorption of Ag 24Au(DMBT) 18 - via efficient TDDFT simulations. J Chem Phys 2021; 155:084103. [PMID: 34470368 DOI: 10.1063/5.0056869] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
We report a computational study via time-dependent density-functional theory (TDDFT) methods of the photo-absorption spectrum of an atomically precise monolayer-protected cluster (MPC), the Ag24Au(DMBT)18 single negative anion, where DMBT is the 2,4-dimethylbenzenethiolate ligand. The use of efficient simulation algorithms, i.e., the complex polarizability polTDDFT approach and the hybrid-diagonal approximation, allows us to employ a variety of exchange-correlation (xc-) functionals at an affordable computational cost. We are thus able to show, first, how the optical response of this prototypical compound, especially but not exclusively in the absorption threshold (low-energy) region, is sensitive to (1) the choice of the xc-functionals employed in the Kohn-Sham equations and the TDDFT kernel and (2) the choice of the MPC geometry. By comparing simulated spectra with precise experimental photoabsorption data obtained from room temperature down to low temperatures, we then demonstrate how a hybrid xc-functional in both the Kohn-Sham equations and the diagonal TDDFT kernel at the crystallographically determined experimental geometry is able to provide a consistent agreement between simulated and measured spectra across the entire optical region. Single-particle decomposition analysis tools finally allow us to understand the physical reason for the failure of non-hybrid approaches.
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Affiliation(s)
- Marco Medves
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy
| | - Luca Sementa
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, via Giuseppe Moruzzi 1, I-56124 Pisa, Italy
| | - Daniele Toffoli
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy
| | - Giovanna Fronzoni
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy
| | | | - Thomas Bürgi
- Département de Chimie Physique, Université de Gene've, 1211 Geneva 4, Switzerland
| | - Sara Bonacchi
- University of Padova, Department of Chemistry, Via Marzolo 1, I-35131 Padova, Italy
| | - Tiziano Dainese
- University of Padova, Department of Chemistry, Via Marzolo 1, I-35131 Padova, Italy
| | - Flavio Maran
- University of Padova, Department of Chemistry, Via Marzolo 1, I-35131 Padova, Italy
| | - Alessandro Fortunelli
- CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, via Giuseppe Moruzzi 1, I-56124 Pisa, Italy
| | - Mauro Stener
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via Giorgieri 1, I-34127 Trieste, Italy
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7
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Shichibu Y, Ogawa Y, Sugiuchi M, Konishi K. Chiroptical activity of Au 13 clusters: experimental and theoretical understanding of the origin of helical charge movements. NANOSCALE ADVANCES 2021; 3:1005-1011. [PMID: 36133296 PMCID: PMC9416943 DOI: 10.1039/d0na00833h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/05/2020] [Indexed: 05/07/2023]
Abstract
Ligand-protected gold clusters with an asymmetric nature have emerged as a novel class of chiral compounds, but the origins of their chiroptical activities associated with helical charge movements in electronic transitions remain unexplored. Herein, we perform experimental and theoretical studies on the structures and chiroptical properties of Au13 clusters protected by mono- and di-phosphine ligands. Based on the experimental reevaluation of diphosphine-ligated Au13 clusters, we show that these surface ligands slightly twist the Au13 cores from a true icosahedron to generate intrinsic chirality in the gold frameworks. Theoretical investigation of a monophosphine-ligated cluster model reproduced the experimentally observed circular dichroism (CD) spectrum, indicating that such a torsional twist of the Au13 core, rather than the surrounding chiral environment by helically arranged diphosphine ligands, contributes to the appearance of the chiroptical response. We also show that the calculated CD signals are dependent on the degree of asymmetry (torsion angle between the two equatorial Au5 pentagons), and provide a visual understanding of the origin of helical charge movements with transition-moment and transition-density analyses. This work provides novel insights into the chiroptical activities of ligand-protected metal clusters with intrinsically chiral cores.
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Affiliation(s)
- Yukatsu Shichibu
- Graduate School of Environmental Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
- Faculty of Environmental Earth Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
| | - Yuri Ogawa
- Graduate School of Environmental Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
| | - Mizuho Sugiuchi
- Graduate School of Environmental Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
| | - Katsuaki Konishi
- Graduate School of Environmental Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
- Faculty of Environmental Earth Science, Hokkaido University North 10 West 5 Sapporo 060-0810 Japan
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8
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Yousefalizadeh G, Ahmadi S, Mosey NJ, Stamplecoskie KG. Exciting clusters, what does off-resonance actually mean? NANOSCALE 2021; 13:242-252. [PMID: 33331367 DOI: 10.1039/d0nr06493a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Noble metal clusters have unique photophysical properties, especially as a new class of materials for multiphoton biomedical imaging. The previously studied Au25SR18 exhibits "giant" two-photon absorbance cross sections. Herein, we investigate the origins of the large two photon absorption for Au25SR18, as well as 10 other Au and Ag clusters using femtosecond pump/probe transient absorption spectroscopy (fsTAS). Excited state absorbance (ESA) ubiquitous to thiolated Au and Ag clusters is used herein as an optical signature of two-photon absorbances of the 11 different Au and Ag clusters, which does not require high quantum yields of emission. The large selection of clusters, studied with a single laser system, allows us to draw conclusions on the role of the particular metal, cluster size/structure, and the effects of the ligands on the ability to absorb multiple NIR photons. The use of a laser with a 1028 nm excitation also allows us to investigate the dramatic effect of excitation wavelength and explain why laser wavelength has led to large variances in the non-linear responses reported for clusters to date. We discuss the double resonance mechanism, responsible for giant two photon absorbance cross-sections, helping match properties of metal clusters with experimental conditions for maximizing signal/response in multiphoton applications.
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Affiliation(s)
- Goonay Yousefalizadeh
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada.
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9
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Ahmad SN, Zaharim WN, Sulaiman S, Hasan Baseri DF, Mohd Rosli NA, Ang LS, Yahaya NZ, Watanabe I. Density Functional Theory Studies of the Electronic Structure and Muon Hyperfine Interaction in [Au 25(SR) 18] 0 and [Au 25(SeR) 18] 0 Nanoclusters. ACS OMEGA 2020; 5:33253-33261. [PMID: 33403287 PMCID: PMC7774246 DOI: 10.1021/acsomega.0c04937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
Density functional theory computational investigation was performed to study the electronic structures, muon sites, and the associated hyperfine interactions in [Au25(SR)18]0 and [Au25(SeR)18]0 where R is phenylethane. The calculated electronic structures show inhomogeneous spin density distribution and are also affected by different ligands. The two most stable muon sites near Au atoms in the thiolated system are MAu11 and MAu6. When the thiolate ligands were replaced by selenolate ligands, the lowest energy positions of muons moved to MAu6 and MAu5. Muons prefer to stop inside the Au12 icosahedral shell, away from the central Au and the staple motifs region. Muonium states at phenyl ring and S/Se atoms in the ligand were found to be stable and the Fermi contact fields are much larger as compared to the field experienced by muons near Au atoms.
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Affiliation(s)
- Siti N. Ahmad
- Computational
Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Wan N. Zaharim
- Computational
Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
- USM-RIKEN
Interdisciplinary Collaboration for Advance Sciences, Universiti Sains Malaysia, Pulau
Pinang 11800, Malaysia
| | - Shukri Sulaiman
- Computational
Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
- USM-RIKEN
Interdisciplinary Collaboration for Advance Sciences, Universiti Sains Malaysia, Pulau
Pinang 11800, Malaysia
- Physics
Section, School of Distance Education, Universiti
Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Dang F. Hasan Baseri
- Computational
Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Nur A. Mohd Rosli
- Computational
Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Lee S. Ang
- Faculty
of Applied Sciences, Universiti Teknologi
MARA, Perlis Branch,
Arau Campus, Arau, Perlis 02600, Malaysia
| | - Nor Z. Yahaya
- Physics
Section, School of Distance Education, Universiti
Sains Malaysia, Pulau Pinang 11800, Malaysia
| | - Isao Watanabe
- Meson
Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
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10
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Govindachar DM, Periyasamy G. DFT studies on ureido-peptide functionalized Au4M2 bimetallic nanoclusters. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Yang L, Wang P, Yang Z, Pei Y. Effect of thiolate-ligand passivation on the electronic structure and optical absorption properties of ultrathin one and two-dimensional gold nanocrystals. NANOSCALE 2020; 12:5554-5566. [PMID: 32091523 DOI: 10.1039/c9nr06051k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Gold nanomaterials, including one-dimensional (1D) gold nanorods (AuNRs) and nanowires (AuNWs) and two-dimensional (2D) gold nanoprisms with a large surface area and stability, have attracted widespread research interest. A large number of experimental and theoretical studies have shown that the properties of low dimensional gold nanomaterials depend on their anisotropic shape. In this work, we theoretically conceived a new type of gold nanomaterial, namely, thiolate (SR) monolayer passivated quasi-1D and quasi-2D gold nanocrystals and infinite superstructures, which were formed by the fusion of seed clusters Au28(SR)20, Au36(SR)24, Au44(SR)28 and Au52(SR)32 or the layer by layer growth of gold atoms along the [100] and/or [010] directions. By means of DFT and TD-DFT calculations, the structure and properties of these model gold nanocrystals and superstructures are studied in depth. It is found that the passivation of the monolayer of thiolate leads to significantly improved near-infrared absorption properties in comparison with the ligand free gold nanocrystals. Upon passivating the thiolate-monolayer, the ultrathin 1D gold nanowire and 2D gold nanosheet demonstrate a metal to semiconductor transition. The novel electronic structures, optical absorption and semiconductor-to-metal transition found in these thiolate-protected low-dimensional gold nanocrystals suggest that the passivation of the SR ligand is a promising way to tailor the properties of gold nanomaterials.
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Affiliation(s)
- Liang Yang
- Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applicationics of Ministry of Education, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Hunan Province, Xiangtan 411105, China.
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12
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Abstract
Ultrasmall metal nanoparticles (below 2.2 nm core diameter) start to show discrete electronic energy levels due to strong quantum confinement effects and thus behave much like molecules. The size and structure dependent quantization induces a plethora of new phenomena, including multi-band optical absorption, enhanced luminescence, single-electron magnetism, and catalytic reactivity. The exploration of such new properties is largely built on the success in unveiling the crystallographic structures of atomically precise nanoclusters (typically protected by ligands, formulated as MnLmq, where M = metal, L = Ligand, and q = charge). Correlation between the atomic structures of nanoclusters and their properties has further enabled atomic-precision engineering toward materials design. In this frontier article, we illustrate several aspects of the precise engineering of gold nanoclusters, such as the single-atom size augmenting, single-atom dislodging and doping, precise surface modification, and single-electron control for magnetism. Such precise engineering involves the nanocluster's geometric structure, surface chemistry, and electronic properties, and future endeavors will lead to new materials design rules for structure-function correlations and largely boost the applications of metal nanoclusters in optics, catalysis, magnetism, and other fields. Following the illustrations of atomic-precision engineering, we have also put forth some perspectives. We hope this frontier article will stimulate research interest in atomic-level engineering of nanoclusters.
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Affiliation(s)
- 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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Hossain S, Imai Y, Suzuki D, Choi W, Chen Z, Suzuki T, Yoshioka M, Kawawaki T, Lee D, Negishi Y. Elucidating ligand effects in thiolate-protected metal clusters using Au 24Pt(TBBT) 18 as a model cluster. NANOSCALE 2019; 11:22089-22098. [PMID: 31720662 DOI: 10.1039/c9nr07117b] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
2-Phenylethanethiolate (PET) and 4-tert-butylbenzenethiolate (TBBT) are the most frequently used ligands in the study of thiolate (SR)-protected metal clusters. However, the effect of difference in the functional group between these ligands on the fundamental properties of the clusters has not been clarified. We synthesized [Au24Pt(TBBT)18]0, which has the same number of metal atoms, number of ligands, and framework structure as [Au24Pt(PET)18]0, by replacing ligands of [Au24Pt(PET)18]0 with TBBT. It was found that this ligand exchange is reversible unlike the case of other metal-core clusters. A comparison of the geometrical/electronic structure and stability of the clusters between [Au24Pt(PET)18]0 and [Au24Pt(TBBT)18]0 revealed three things with regard to the effect of ligand change from PET to TBBT on [Au24Pt(SR)18]0: (1) the induction of metal-core contraction and Au-S bond elongation, (2) no substantial effect on the HOMO-LUMO gap but a clear difference in optical absorption in the visible region, and (3) the decrease of stabilities against degradation in solution and under laser irradiation. By using these two clusters as model clusters, it is expected that the effects of the structural difference of ligand functional-groups on the physical properties and functions of clusters, such as catalytic ability and photoluminescence, would be clarified.
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Affiliation(s)
- Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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Kang X, Xu F, Wei X, Wang S, Zhu M. Valence self-regulation of sulfur in nanoclusters. SCIENCE ADVANCES 2019; 5:eaax7863. [PMID: 31803835 PMCID: PMC6874481 DOI: 10.1126/sciadv.aax7863] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 09/25/2019] [Indexed: 05/29/2023]
Abstract
The valence self-regulation of sulfur from the "-2" valence state in thiols to the "-1" valence state in hydroxylated thiolates has been accomplished using the Pt1Ag28 nanocluster as a platform-the first time that the "-1" valent sulfur has been detected as S-1. Two previously unknown nanoclusters, Pt1Ag28(SR)20 and Pt1Ag28(SR)18(HO-SR)2 (where SR represents 2-adamantanethiol), have been synthesized and characterized-in the latter nanocluster, the presence of hydroxyl induces the valence regulation of two special S atoms from "-2" (in SR) to "-1" valence state in the HO-S(Ag)R. Because of the contrasting nature of the capping ligands in these two nanoclusters [i.e., only SR in Pt1Ag28(SR)20 or both SR- and HO-SR- in Pt1Ag28(SR)18(HO-SR)2], they exhibit differing shell architectures, even though their cores (Pt1Ag12) are in the same icosahedral configuration. Single-crystal x-ray diffraction analysis revealed their 1:1 cocrystallization, and mass spectrometry verified the presence of hydroxyls on Pt1Ag28(SR)18(HO-SR)2.
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15
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Tian Z, Xu Y, Cheng L. New Perspectives on the Electronic and Geometric Structure of Au 70S 20(PPh 3) 12 Cluster: Superatomic-Network Core Protected by Novel Au 12(µ 3-S) 10 Staple Motifs. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1132. [PMID: 31390811 PMCID: PMC6722785 DOI: 10.3390/nano9081132] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/26/2019] [Accepted: 07/30/2019] [Indexed: 12/24/2022]
Abstract
In order to increase the understanding of the recently synthesized Au70S20(PPh3)12 cluster, we used the divide and protect concept and superatom network model (SAN) to study the electronic and geometric of the cluster. According to the experimental coordinates of the cluster, the study of Au70S20(PPh3)12 cluster was carried out using density functional theory calculations. Based on the superatom complex (SAC) model, the number of the valence electrons of the cluster is 30. It is not the number of valence electrons satisfied for a magic cluster. According to the concept of divide and protect, Au70S20(PPh3)12 cluster can be viewed as Au-core protected by various staple motifs. On the basis of SAN model, the Au-core is composed of a union of 2e-superatoms, and 2e-superatoms can be Au3, Au4, Au5, or Au6. Au70S20(PPh3)12 cluster should contain fifteen 2e-superatoms on the basis of SAN model. On analyzing the chemical bonding features of Au70S20(PPh3)12, we showed that the electronic structure of it has a network of fifteen 2e-superatoms, abbreviated as 15 × 2e SAN. On the basis of the divide and protect concept, Au70S20(PPh3)12 cluster can be viewed as Au4616+[Au12(µ3-S)108-]2[PPh3]12. The Au4616+ core is composed of one Au2212+ innermost core and ten surrounding 2e-Au4 superatoms. The Au2212+ innermost core can either be viewed as a network of five 2e-Au6 superatoms, or be considered as a 10e-superatomic molecule. This new segmentation method can properly explain the structure and stability of Au70S20(PPh3)12 cluster. A novel extended staple motif [Au12(µ3-S)10]8- was discovered, which is a half-cage with ten µ3-S units and six teeth. The six teeth staple motif enriches the family of staple motifs in ligand-protected Au clusters. Au70S20(PPh3)12 cluster derives its stability from SAN model and aurophilic interactions. Inspired by the half-cage motif, we design three core-in-cage clusters with cage staple motifs, Cu6@Au12(μ3-S)8, Ag6@Au12(μ3-S)8 and Au6@Au12(μ3-S)8, which exhibit high thermostability and may be synthesized in future.
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Affiliation(s)
- Zhimei Tian
- Department of Chemistry, Anhui University, Hefei 230601, Anhui, China
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, Anhui, China
| | - Yangyang Xu
- School of Social and Public Administration, East China University of Science and Technology, Shanghai 200237, China
| | - Longjiu Cheng
- Department of Chemistry, Anhui University, Hefei 230601, Anhui, China.
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, China.
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Weng S, Lv Y, Yu H, Zhu M. The Ligand-Exchange Reactions of Rod-Like Au 25-n M n (M=Au, Ag, Cu, Pd, Pt) Nanoclusters with Cysteine - A Density Functional Theory Study. Chemphyschem 2019; 20:1822-1829. [PMID: 31070285 DOI: 10.1002/cphc.201900439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/08/2019] [Indexed: 11/06/2022]
Abstract
The atomic precision of ultrasmall noble-metal nanoclusters (NMNs) is fundamental for elucidating structure-property relationships and probing their practical applications. So far, the atomic structure of NMNs protected by organic ligands has been widely elucidated, whereas the precise atomic structure of NMNs protected by water-soluble ligands (such as peptides and nucleic acid), has been rarely reported. With the concept of "precision to precision", density functional theory (DFT) calculations were performed to probe the thermodynamic plausibility and inherent determinants for synthesizing atomically precise, water-soluble NMNs via the framework-maintained two-phase ligand-exchange method. A series of rod-like Au25-n Mn (M=Au, Ag, Cu, Pd, Pt) NMNs with the same framework but varied ligands and metal compositions was chosen as the modeling reactants, and cysteine was used as the modeling water-soluble ligand. It was found that the acidity of the reaction remarkably affects the thermodynamic facility of the ligand exchange reactions. Ligand effects (structural distortion and acidity) dominate the overall thermodynamic facility of the ligand-exchange reaction, while the number and type of doped metal atom(s) has little influence.
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Affiliation(s)
- 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, China
| | - 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, Anhui University, Hefei, Anhui, 230601, 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, China.,Institute of Physical Science and Information Technology, 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.,Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, China
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17
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Niihori Y, Yoshida K, Hossain S, Kurashige W, Negishi Y. Deepening the Understanding of Thiolate-Protected Metal Clusters Using High-Performance Liquid Chromatography. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180357] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yoshiki Niihori
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kana Yoshida
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Wataru Kurashige
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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18
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Wan T, Tang F, Yin Y, Zhang M, Choi MMF, Yang X. Size‐dependent electrophoretic migration and separation of water‐soluble gold nanoclusters by capillary electrophoresis. Electrophoresis 2019; 40:1345-1352. [PMID: 30680763 DOI: 10.1002/elps.201800347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/29/2018] [Accepted: 01/21/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Ting Wan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical EngineeringChina West Normal University Nanchong P. R. China
| | - Fenglin Tang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical EngineeringChina West Normal University Nanchong P. R. China
| | - Yanru Yin
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical EngineeringChina West Normal University Nanchong P. R. China
| | - Maoxue Zhang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical EngineeringChina West Normal University Nanchong P. R. China
| | - Martin M. F. Choi
- Department of ChemistryHong Kong Baptist University Hong Kong SAR P. R. China
| | - Xiupei Yang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical EngineeringChina West Normal University Nanchong P. R. China
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19
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Kang X, Zhu M. Tailoring the photoluminescence of atomically precise nanoclusters. Chem Soc Rev 2019; 48:2422-2457. [PMID: 30838373 DOI: 10.1039/c8cs00800k] [Citation(s) in RCA: 506] [Impact Index Per Article: 101.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Due to their atomically precise structures and intriguing chemical/physical properties, metal nanoclusters are an emerging class of modular nanomaterials. Photo-luminescence (PL) is one of their most fascinating properties, due to the plethora of promising PL-based applications, such as chemical sensing, bio-imaging, cell labeling, phototherapy, drug delivery, and so on. However, the PL of most current nanoclusters is still unsatisfactory-the PL quantum yield (QY) is relatively low (generally lower than 20%), the emission lifetimes are generally in the nanosecond range, and the emitted color is always red (emission wavelengths of above 630 nm). To address these shortcomings, several strategies have been adopted, and are reviewed herein: capped-ligand engineering, metallic kernel alloying, aggregation-induced emission, self-assembly of nanocluster building blocks into cluster-based networks, and adjustments on external environment factors. We further review promising applications of these fluorescent nanoclusters, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling. Finally, scope for improvements and future perspectives of these novel nanomaterials are highlighted as well. Our intended audience is the broader scientific community interested in the fluorescence of metal nanoclusters, and our review hopefully opens up new horizons for these scientists to manipulate PL properties of nanoclusters. This review is based on publications available up to December 2018.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, China.
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20
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Yousefalizadeh G, Stamplecoskie KG. A Single Model for the Excited-State Dynamics of Au18(SR)14 and Au25(SR)18 Clusters. J Phys Chem A 2018; 122:7014-7022. [DOI: 10.1021/acs.jpca.8b07072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Nasaruddin RR, Chen T, Yan N, Xie J. Roles of thiolate ligands in the synthesis, properties and catalytic application of gold nanoclusters. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.016] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Wang P, Sun X, Liu X, Xiong L, Ma Z, Wang Y, Pei Y. A revisit to the structure of Au 20(SCH 2CH 2Ph) 16: a cubic nanocrystal-like gold kernel. NANOSCALE 2018; 10:10357-10364. [PMID: 29796459 DOI: 10.1039/c8nr00995c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Coinage metal clusters stabilized by organic ligands such as phosphine or organothiolate are well known to possess multi-twinned gold cores, and the face-centered-cubic (fcc) metal atom packing is unstable until the cluster size reaches a certain threshold. In this study, we searched for the smallest size gold nanocrystal protected by thiolate ligands by means of the crystal facet cleavage (CFC) method. Starting from the nanocrystal-like Au28(SR)20 cluster, after cleaving two different crystal facets and patching the ligand shells, we obtained five nanocrystal-like Au20(SR)16 isomers. These fcc-structured Au20 clusters were quite different from non-fcc Au20(SPh-tBu)16; the latter's total structure was determined by single X-ray diffraction. By employing dispersion correction density functional theory (DFT-D) calculations and considering ligand effects, we found that fcc-structured Au20(SR)16 isomers had comparable or even lower energies when compared with the non-fcc structure found in Au20(SPh-tBu)16. Furthermore, the calculation of optical absorption spectra based on predicted fcc isomers indicated that the cubic nanocrystal-like isomer structure is a good candidate to understand the structure of the Au20(SCH2CH2Ph)16 cluster.
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Affiliation(s)
- Pu Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, P. R. China.
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23
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Palacios-Álvarez O, Tlahuice-Flores A. Study of the interaction between cisplatin and the Au 18(SR) 14 cluster: in search of an appropriate cisplatin carrier. Phys Chem Chem Phys 2018; 19:26545-26550. [PMID: 28967012 DOI: 10.1039/c7cp04452f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cisplatin is a well known anti-cancer drug and considered as essential by the World Health Organization. However, cisplatin features side effects during medical treatments due to its lack of selectivity resulting in the indiscriminate death of cells including healthy cells. To solve this issue, it is mandatory to improve its delivery towards affected organs or tissues. The well known bio-compatibility of gold clusters encouraged us to study the interaction between cisplatin molecules and the Au18(SR)14 cluster (named Au18) and our DFT calculations have provided insight into this aspect. Calculated adsorption energy values of the cisplatinn/Au18 complexes are within the 0.5-3.6 eV range, which attests to their unique interaction. In addition, their calculated optical absorption (UV-vis) and circular dichroism (CD) spectra display distinct peaks in such a manner that UV/CD spectra can be used as fingerprints by experimentalists.
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Affiliation(s)
- O Palacios-Álvarez
- Universidad Autónoma de Nuevo León, CICFIM-Facultad de Ciencias Físico-Matemáticas, San Nicolás de los Garza, NL 66450, Mexico.
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24
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Dong H, Liao L, Zhuang S, Yao C, Chen J, Tian S, Zhu M, Liu X, Li L, Wu Z. A novel double-helical-kernel evolution pattern of gold nanoclusters: alternate single-stranded growth at both ends. NANOSCALE 2017; 9:3742-3746. [PMID: 28134388 DOI: 10.1039/c6nr09724c] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Studying the kernel evolution pattern of gold nanoclusters is intriguing but challenging due to the difficulty of precise size control and structure resolution. Herein, we successfully synthesized two novel gold nanoclusters, Au34(S-c-C6H11)22 and Au42(S-c-C6H11)26 (S-c-C6H11: cyclohexanethiolate), and resolved their structures. Interestingly, it was found that the kernel evolves from Au28(S-c-C6H11)20 to Au34(S-c-C6H11)22 and Au42(S-c-C6H11)26 in a novel fashion: alternate single-stranded evolution at both ends, which is remarkably different from the reported double-stranded growth at the bottom for the 4-tert-butylbenzenethiolate (TBBT)-protected nanocluster series. This work illustrates the variety of kernel evolution patterns and the directionality of the ligands with respect to the evolution of the kernel. In addition, differential pulse voltammetry (DPV) revealed that the electrochemical gap between the first oxidation and the first reduction potential decreases as the size increases from Au28(S-c-C6H11)20 to Au34(S-c-C6H11)22 and Au42(S-c-C6H11)26.
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Affiliation(s)
- Hongwei Dong
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China. and University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lingwen Liao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Shengli Zhuang
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China. and University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chuanhao Yao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Jishi Chen
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Shubo Tian
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Min Zhu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Xu Liu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China. and University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lingling Li
- Instrumental Analysis Center, Shanghai Jiaotong University, Shanghai 200240, China
| | - Zhikun Wu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
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25
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Chen J, Pan Y, Wang Z, Zhao P. The fluorescence properties of tiara like structural thiolated palladium clusters. Dalton Trans 2017; 46:12964-12970. [DOI: 10.1039/c7dt02836a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A series of tiara like structural Pdn(SR)2n (5 ≤ n ≤ 20) nanoclusters exhibit emission at 620 nm with excitation at around 268 nm. Their emission is due to ligand to metal charge transfer.
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Affiliation(s)
- Jishi Chen
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Laboratory of Fiber Materials and Modern Textiles
- The Growing Base for State Key Laboratory
- Collaborative Innovation Center for Marine Biomass Fiber
| | - Yanze Pan
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Laboratory of Fiber Materials and Modern Textiles
- The Growing Base for State Key Laboratory
- Collaborative Innovation Center for Marine Biomass Fiber
| | - Zonghua Wang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Laboratory of Fiber Materials and Modern Textiles
- The Growing Base for State Key Laboratory
- Collaborative Innovation Center for Marine Biomass Fiber
| | - Peng Zhao
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Laboratory of Fiber Materials and Modern Textiles
- The Growing Base for State Key Laboratory
- Collaborative Innovation Center for Marine Biomass Fiber
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