Synthesis and characterization of mixed-ligand complexes of Cu(I) containing halides, triphenylstibine and triphenylbismuthine, N,N-dimethyl-N′-phenylthiourea (dmptH), N,N-dibutyl-N′-phenylthiourea (dbptH) and 1,3-thiazolidine-2-thione (tzdtH)

Article abstract of DOI:10.1080/00945710009351760

The triphenylstibine and bismuthine complexes [Cu(EPh₃)(LH)₂X] (LH = N,N-dimethyl-N′-phenylthiourea) (dmptH), N,N-dibutyl-N′-phenylthiourea (dbptH) or 1,3-thiazolidine-2-thione (tzdtH); E = Sb or Bi; X = Cl, Br or I have been prepared and characterized on the basis of analytical, IR, electronic (UV-Vis), ¹H and ¹³C NMR, FAB mass and conductivity measurements. In all cases there is a distorted tetrahedral environment around Cu(I) and the ligand (LH) binds through the thione sulphur atom to copper(I). This is confirmed by FTIR spectra of the complexes. The complexes show ν(Cu-Sb) in the range 180-195 cm^-1.