Issue 24, 2021

Nonanuclear zinc–gold [Zn3Au6] heterobimetallic complexes

Abstract

Nonanuclear zinc–gold heterobimetallic complexes were synthesized in a two-step process. Commercially available carboxy-functionalized phosphine ligands were used for selective binding to Zn and Au centers. In the first step, bipyridine coordinated Zn-metalloligands with free phosphine moieties were prepared. Reaction of Zn-metalloligands with [AuCl(tht)] (tht = tetrahydrothiophene) resulted in the formation of nonanuclear Zn–Au heterobimetallic complexes. The flexibility of the carboxy-functionalized phosphine ligands was shown to be crucial for the formation of aurophilic interactions. Further, the photoluminescence of the Zn-metalloligands and one Zn–Au complex was investigated at room temperature as well as 77 K. The emission spectra showed clear difference between the Zn-metalloligands and the Zn–Au complex.

Graphical abstract: Nonanuclear zinc–gold [Zn3Au6] heterobimetallic complexes

Supplementary files

Article information

Article type
Paper
Submitted
27 Apr 2021
Accepted
19 May 2021
First published
02 Jun 2021
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2021,50, 8558-8566

Nonanuclear zinc–gold [Zn3Au6] heterobimetallic complexes

R. Yadav, M. Dahlen, A. K. Singh, X. Sun, M. T. Gamer and P. W. Roesky, Dalton Trans., 2021, 50, 8558 DOI: 10.1039/D1DT01396C

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