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Synthesis, photophysical properties and cation-binding studies of bipyridine-functionalized gold(I) complexes

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Abstract

Gold(I) has been used as an interlocking center to design five phenyl-bipyridine based complexes [LAu(L1)] and [RAu(L2)] where L1 = 5-(4-ethynylphenyl)-2,2′-bipyridine and L2 = 5-(4-(diphenylphosphino)phenyl)-2,2′-bipyridine (L = P(C6H11)3, 1; C6H3(CH3)2NC, 2; R = Ph2OHCC2, 3; PhC2, 4; C6F5, 5). The obtained compounds have been characterized by polynuclear NMR spectroscopy and X-ray crystallography. Investigation of their UV-Vis absorption and emission characteristics has been supported by density functional theory (DFT) calculations that rationalize the tunable electronic properties of these compounds. Complexation of the metal cations and the corresponding optical responses of [LAu(L1)], in particular for Cd(II) and Pb(II), indicate the important role of gold(I) ions in modulating the luminescence characteristics of these species upon binding the analyte cations.

Graphical abstract: Synthesis, photophysical properties and cation-binding studies of bipyridine-functionalized gold(i) complexes

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Publication details

The article was received on 24 Aug 2017, accepted on 02 Nov 2017 and first published on 03 Nov 2017


Article type: Research Article
DOI: 10.1039/C7QI00514H
Citation: Inorg. Chem. Front., 2018, Advance Article
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    Synthesis, photophysical properties and cation-binding studies of bipyridine-functionalized gold(I) complexes

    I. V. Solovyev, A. Kondinski, K. Yu. Monakhov, I. O. Koshevoy and E. V. Grachova, Inorg. Chem. Front., 2018, Advance Article , DOI: 10.1039/C7QI00514H

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