Issue 32, 2007

Luminescent 1D chain of platinum(ii) terpyridyl units with p-dithiobenzoquinone organometallic linker: self-aggregation imparted from Pt⋯Pt/π–π interactions

Abstract

Unlike p-dithiobenzoquinone (1), which is extremely reactive and has never been isolated, the metal-stabilised p-dithiobenzoquinone [Cp*Ir(η4-C6H4S2)] (2c) was prepared and used as an efficient organometallic linker to construct novel supramolecular assemblies. Treatment of 2c with the electrophilic Pt(II)(terpy) building blocks produced the supramolecular assembly {[Pt(terpy){Cp*Ir-p-(η4-C6H4S2)}Pt(terpy)][OTf]4}n (3), which was fully characterised and its molecular structure was determined by X-ray crystallography. The structure of 3 revealed the presence of π–π and Pt⋯Pt interactions among individual molecules describing a 1D chain. Complex 3 showed unusual UV/Vis absorption and luminescence behaviour at low temperature, imparted from self-aggregation mediated by π–π and Pt⋯Pt interactions.

Graphical abstract: Luminescent 1D chain of platinum(ii) terpyridyl units with p-dithiobenzoquinone organometallic linker: self-aggregation imparted from Pt⋯Pt/π–π interactions

Supplementary files

Article information

Article type
Paper
Submitted
12 Jun 2007
Accepted
13 Jun 2007
First published
13 Jul 2007

Dalton Trans., 2007, 3526-3530

Luminescent 1D chain of platinum(II) terpyridyl units with p-dithiobenzoquinone organometallic linker: self-aggregation imparted from Pt⋯Pt/π–π interactions

J. Moussa, K. Man-Chung Wong, L. Chamoreau, H. Amouri and V. Wing-Wah Yam, Dalton Trans., 2007, 3526 DOI: 10.1039/B708922H

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