Jump to main content
Jump to site search

Issue 4, 2012
Previous Article Next Article

Aurophilicity in gold(i) thiosemicarbazone clusters

Author affiliations

Abstract

The reaction of the phosphine thiosemicarbazone ligands HLPH and HLPMe with Au(I) ions yields the gold complexes [Au3(HLPH)2Cl2]Cl·2MeOH (1·2MeOH) and [Au2(HLPMe)Cl2] (2). The structures determined by X Ray diffraction, [Au3(HLPH)2Cl2]Cl·4MeOH (1·4MeOH) and [Au2(HLPMe)Cl2]2 (2), are the first examples of gold(I) thiosemicarbazone clusters showing aurophilicity. The structure of the trinuclear cation 1 contains the Au(1) atom located in an inversion centre, being connected to another gold(I) atom, Au(2), through a phosphino thiosemicarbazone molecule which acts as a S,P-bridging ligand. Additionally, every gold(I) atom in the trinuclear cation 1 assembles into trinuclear linear cluster units by means of close gold–gold interactions, being connected through the crystal cell in a 2D zigzag mode. The crystal structure of [Au2(HLPMe)Cl2]2 (2) contains one discrete molecule [(AuCl)2(HLPMe)] in the asymmetric unit, which is further assembled into tetranuclear [(AuCl)2(HLPMe)]2 units by means of close gold–gold interactions. Both clusters are highly luminescent in solution.

Graphical abstract: Aurophilicity in gold(i) thiosemicarbazone clusters

Back to tab navigation

Supplementary files

Article information


Submitted
05 Sep 2011
Accepted
19 Oct 2011
First published
24 Nov 2011

Dalton Trans., 2012,41, 1363-1372
Article type
Paper

Aurophilicity in gold(I) thiosemicarbazone clusters

A. Castiñeiras and R. Pedrido, Dalton Trans., 2012, 41, 1363
DOI: 10.1039/C1DT11680K

Social activity

Search articles by author

Spotlight

Advertisements