TY - JOUR

T1 - Synthesis, photophysical properties and cation-binding studies of bipyridine-functionalized gold(i) complexes

AU - Solovyev, Igor V.

AU - Kondinski, Aleksandar

AU - Monakhov, Kirill Yu

AU - Koshevoy, Igor O.

AU - Grachova, Elena V.

N1 - Funding Information: The authors greatly appreciate financial support from the Russian Science Foundation, grant 16-13-10064. The work was carried out using the equipment of core facilities of St Petersburg State University Research Park: Centers of Magnetic Resonance, Optical and Laser Materials Research, Chemical Analysis and Materials Research, and the X-ray Diffraction Centre. DFT calculations were performed using supercomputing facilities at the Institute of Inorganic Chemistry at RWTH Aachen University. Publisher Copyright: © 2017 the Partner Organisations. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/1

Y1 - 2018/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85040832533&partnerID=8YFLogxK

U2 - 10.1039/C7QI00514H

DO - 10.1039/C7QI00514H

M3 - Article

AN - SCOPUS:85040832533

VL - 5

SP - 160

EP - 171

JO - Inorganic Chemistry Frontiers

JF - Inorganic Chemistry Frontiers

SN - 2052-1545

IS - 1

ER -