Copper(I) halide complexes of 2-thiohydantoin and 5,5-diphenyl-2-thiohydantoin
摘要:
A series of copper(I) halide complexes formulated as [CuX(L)(2)] [X = Cl, Br; L = 2-thiohydantoin (th) and 5,5-diphenyl-2-thiohydantoin (dpth)] were prepared and their photophysical and thermal (TG-DTA) behaviour was investigated. Further treatment of these complexes with triphenylphosphane gave mixed-ligand compounds [CuX(L)(PPh3)(2)]. Solutions of the complexes are emissive in the solid state and in solution at ambient temperature, with the lowest energy emitting excited states assigned to MLCT/XLCT transitions. The crystal structures of [CuBr(th)(2)] and [CuCl(PPh3)(2)(th)] revealed planar trigonal and distorted tetragonal coordination environment around the Cu(I) centres, respectively. (C) 2012 Elsevier Ltd. All rights reserved.