Issue 42, 2020

The positional isomerism in bimetal nanoclusters

Abstract

Enriching the variety of isomerism in the nanocluster field is exciting but challenging. In this work, for the first time we graft the concept of positional isomerism in organic molecules onto thiolate-stabilized nanoclusters and report such positional isomerism. The structure of the novel nanocluster Au12Ag32(2-EBT)26(PPh3)4 (2-EBTH = 2-ethylbenzenethiol) was characterized by single crystal X-ray crystallography. The result indicated that the prepared nanocluster Au12Ag32(2-EBT)26(PPh3)4 has the same Ag/Au molar ratio as the existing Au12Ag32(3,4-DFT)30 (3,4-DFTH = 3,4-difluorothiophenol) nanocluster but with an entirely different surface structure. Interestingly, another fascinating structural feature in Au12Ag32(2-EBT)26(PPh3)4 is the presence of chirality, which is a particular distinguishing structural characteristic among the reported bimetal nanoclusters to the best of our knowledge.

Graphical abstract: The positional isomerism in bimetal nanoclusters

Supplementary files

Article information

Article type
Communication
Submitted
13 Sep 2020
Accepted
28 Sep 2020
First published
28 Sep 2020

CrystEngComm, 2020,22, 6975-6978

The positional isomerism in bimetal nanoclusters

L. He, X. He, J. Wang, Y. Qu, X. Su, J. Zheng and X. Zhao, CrystEngComm, 2020, 22, 6975 DOI: 10.1039/D0CE01334J

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