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Issue 1, 2014
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Three-coordinate gold(I) N-heterocyclic carbene complexes: a new class of strongly luminescent derivatives

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Abstract

A selected group of cationic three-coordinate Au(I)–NHC complexes of the form [Au(NHC)(dppbz)]OTf have been prepared from a commercially available bidentate phosphine. All complexes have been fully characterised by NMR and mass spectroscopy. The [Au(NHC)]+ fragment shows a pronounced tendency to form linear complexes which is confirmed by the molecular structure of [Au(IPr)(dppbz)]OTf in the solid state. The complexes are brightly luminescent and present very high quantum yield values in the solid state. The assignments of the electronic transitions involved in the emissions are of a phosphorescent nature and it is proposed that the origin of the emissions is derived from the ligand (dppbz) to metal–ligand (Au–NHC) charge-transfer (LML′CT) transition.

Graphical abstract: Three-coordinate gold(i) N-heterocyclic carbene complexes: a new class of strongly luminescent derivatives

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Publication details

The article was received on 06 Aug 2013, accepted on 20 Sep 2013 and first published on 20 Sep 2013


Article type: Paper
DOI: 10.1039/C3DT52146J
Citation: Dalton Trans., 2014,43, 328-334
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    Three-coordinate gold(I) N-heterocyclic carbene complexes: a new class of strongly luminescent derivatives

    R. Visbal, J. M. López-de-Luzuriaga, A. Laguna and M. C. Gimeno, Dalton Trans., 2014, 43, 328
    DOI: 10.1039/C3DT52146J

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