Structure and Chemical Bonding of Au <sub>2</sub> H <sub>2</sub> <sup>–/0</sup> : A Joint Photoelectron Imaging Spectroscopic and Theoretical Characterization
The geometry and chemical bonding of Au<sub>2</sub>H<sub>2</sub><sup>-/0</sup> have been investigated by using photoelectron velocity map imaging spectroscopy and theoretical calculations. The Au<sub>2</sub>H<sub>2</sub><sup>-</sup> cluster adopts a distorted Y-shaped structure, featuring one H atom bridging two Au atoms and another H atom terminally bonded to one Au atom. The unusually low frequency of the Au-H stretching vibration observed in the current spectrum can be attributed to the delocalized 3c-2e bonding interaction associated with a bridging H atom as well as the synergistic donation and back-donation interactions between the two AuH subunits.
Authors
- Zhiling Liu (ORCID: https://orcid.org/0000-0002-1669-396X)
- Yonghong Yan (ORCID: https://orcid.org/0000-0002-0934-0058)
- Jianfeng Jia (ORCID: https://orcid.org/0000-0002-0857-3271)
- Fuqiang Zhang
- Ya Li (ORCID: https://orcid.org/0000-0002-1072-1050)
- Xiaoying Chen (ORCID: https://orcid.org/0000-0001-7562-1766)
- Xiaoyue Yao
Institutions
- Shanxi University (CN)
- Ministry of Education (RW)
- Shanxi Normal University (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry A
- Published
- 2025-11-14
- DOI
- https://doi.org/10.1021/acs.jpca.5c05171
- Primary Topic
- Advanced Chemical Physics Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00