期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 144, 期 5, 页码 2056-2061出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c11857
关键词
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资金
- KAKENHI from JSPS [21H01949, JP20H00370]
- JSPS
- Mazda Foundation
- Uehara Memorial Foundation
- World Premier International Research Centre Initiative (WPI) program
- NSERC
- Canada Foundation for Innovation (CFI)
- Nanotechnology Platform (Advanced Characterization Nanotechnology Platform) of MEXT, Japan [JPMXP09A21UT0003]
- JST, CREST [JPMJCR20B2]
- Academy of Finland [319208]
- Academy of Finland (AKA) [319208] Funding Source: Academy of Finland (AKA)
- Grants-in-Aid for Scientific Research [21H01949] Funding Source: KAKEN
This study reports the first chiral Au-10 nanoclusters stabilized by chiral bis N-heterocyclic carbene (bisNHC) ligands and confirms their structure and properties. DFT calculations further reveal the electronic structure and optical characteristics, as well as chirality transfer, of this nanocluster.
Herein we report the first chiral Au-10 nanoclusters stabilized by chiral bis N-heterocyclic carbene (bisNHC) ligands. ESI-MS and single-crystal X-ray crystallography confirmed the molecular formula to be [Au-10(bisNHC)(4)Br-2](O2CCF3)(2). The chiral Au-10 nanocluster adopts a linear edge-shared tetrahedral geometry with a prolate shape. DFT calculations provide insight into the electronic structure, optical absorption, and circular dichroism (CD) characteristics of this unique Au-10 nanocluster. CD spectra demonstrate chirality transfer from the chiral bisNHC ligand to the inner Au-10 nanocluster core. Examination of ESI-MS and UV-vis spectra show that cluster [Au-9(bisNHC)(4)Br]Br-2 is formed initially and then transformed into the Au-10 nanocluster in solution.
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