Synthesis and characterization of metal dithiocarbamate derivatives of (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline.

Five metal dithiocarbamate complexes [M(PTHIQDTC)] [where PTHIQDTC is (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline dithiocarbamate anion and M is Ni(II) (1), Sn(II) (2), Hg(II) (3), Pb(II) (4) and Zn(II) (5)] were synthesized from the reaction of MX (X is Cl for 1-3 and OAc for 4-5) with ligand of triethylammonium (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline dithiocarbamate [EtNH][PTHIQDTC] in methanolic solution at room temperature. The five complexes were characterized by IR, H andC NMR, mass spectrometry, elemental analysis and TGA analysis. Recrystallization of [Zn(PTHIQDTC)] (5) in dimethylsulfoxide (DMSO) converts 5 to [Zn(PTHIQDTC)(DMSO)] (6). The structure of complex 6 has been determined by X-ray crystallography. The X-ray structural analysis of 6 indicated that the zinc(II) is five-coordinated in a distorted trigonal-bipyramidal by four S atoms from two (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline dithiocarbamate anion ligands (PTHIQDTC) and one O atom from DMSO.