We measured the photoelectron spectra of AuCn− (n=3−8) and conducted theoretical study on the structures and properties of AuCn−/0 (n=3−8). It is found that the photoelectron spectra of AuCn− exhibit odd-even alternation. The spectral features of AuC3−, AuC5−, and AuC7− are much broader than those of AuC4−, AuC6−, and AuC8−. The vertical detachment energies of AuC3−, AuC5−, and AuC7− are lower than those of AuC4−, AuC6−, and AuC8−. The most stable structures of AuCn− (n=3−8) are chain structures. The most stable structures of neutral AuCn (n=3−8) are linear structures except that those of AuC3 and AuC5 are slightly bent. The calculated ∠AuCC angles, Au−C bond lengths, and the charges on Au atom also show odd-even alternations, consistent with the experimental observations.
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February 2022
Research Article|
February 01 2022
Anion photoelectron spectroscopy and density functional theory studies of AuCn−/0 (n=3−8): Odd-even alternation in electron binding energies and structures†
Peng Wang;
Peng Wang
a
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Shuai-Ting Yan;
Shuai-Ting Yan
a
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Hong-Guang Xu;
Hong-Guang Xu
*
a
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Xi-Ling Xu;
Xi-Ling Xu
a
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Wei-Jun Zheng
Wei-Jun Zheng
*
a
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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†
Part of Special Issue “In Memory of Prof. Nanquan Lou on the occasion of his 100th anniversary”.
Chin. J. Chem. Phys. 35, 177–184 (2022)
Article history
Received:
December 01 2021
Accepted:
December 20 2021
Citation
Peng Wang, Shuai-Ting Yan, Hong-Guang Xu, Xi-Ling Xu, Wei-Jun Zheng; Anion photoelectron spectroscopy and density functional theory studies of AuCn−/0 (n=3−8): Odd-even alternation in electron binding energies and structures. Chin. J. Chem. Phys. 1 February 2022; 35 (1): 177–184. https://doi.org/10.1063/1674-0068/cjcp2112267
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