Linking thione-ligated copper(I) centres with trans-1,2-bis(diphenylphosphino)ethene (trans-dppen): crystal structures of the pyrimidine-2-thione derivatives [CuBr(μ2-trans-dppen)(pymtH)]2 and [CuI(μ2-trans-dppen)(pymtH)]2
Keywords: Copper(I) halide complexes; Heterocyclic thione complexes; trans-1,2-Bis(diphenylphosphino)ethene complexes; Crystal structures;