Synthesis and Photophysical Properties of Au(III)-Ag(I) Aggregates

Fernandez Cestau, Julio, Rama, Raquel, Rocchigiani, Luca, Bertrand, Benoit, Lalinde, Elena, Linnolahti, Mikko and Bochmann, Manfred (2019) Synthesis and Photophysical Properties of Au(III)-Ag(I) Aggregates. Inorganic Chemistry, 58 (3). 2020–2030. ISSN 0020-1669

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Abstract

Cyclometallated gold (III) complexes of the type (C^N^C)AuX [HC^N^CH = 2,6-bis(4-ButC6H4)pyrazine; 2,6-bis(4-ButC6H4)pyridine, or 2,6-bis(4-ButC6H4)4-Butpyridine; X = CN, CH(COMe)2 or CH(CN)2] have been used as building blocks for the construction of the first family of AuIII/AgI aggregates. The crystal structures of these aggregates reveal the formation of complex architectures in which the Ag+ cations are stabilized by the basic centers present on each of the Au precursors. The photophysical properties of these aggregates are reported. Compared to mononuclear pincer complexes, a general red-shift and an increase in the emission intensity are observed. In agreement with DFT calculations the lowest energy absorption and the emission are assigned to 1IL(C^N^C) and 3IL(C^N^C) transitions dominated by the HOMO and the LUMO orbitals.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: LivePure Connector
Date Deposited: 22 Jan 2019 11:30
Last Modified: 19 May 2020 00:08
URI: https://ueaeprints.uea.ac.uk/id/eprint/69647
DOI: 10.1021/acs.inorgchem.8b02987

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