JOURNAL OF COORDINATION CHEMISTRY, cilt.61, sa.19, ss.3134-3146, 2008 (SCI-Expanded, Scopus)
2,2-diphenyl-N-(R-carbamothioyl)acetamide (R = diethyl, dipropyl, dibutyl, dihexyl, diphenyl and morpholine-4) and their Ni(2)+ and Cu(2)+ complexes have been synthesized and characterized by elemental analyses, IR spectroscopy and (1)H-NMR spectroscopy. The spectroscopic data are consistent with the ligand and the metal complexes containing two O, S chelated ligands. 2,2-diphenyl-N-(diethylcarbamothioyl)acetamide, HL(1), and bis(2,2-diphenyl-N-(diethylcarbamothioyl)acetamido)nickel(II), Ni(L(1))(2), were characterized by a single crystal X-ray diffraction study. HL(1) complex, C(19)H(22)N(2)OS, crystallizes monoclinic, space group P2(1)/c, with Z = 4, and unit cell parameters a = 14.964(2), b = 13.026(2), c = 9.0123(15) angstrom, beta= 96.314(4)degrees. Ni(L(1))(2) complex, C(38)H(42)N(4)O(2)S(2)Ni, crystallizes in monoclinic space group P2(1)/c, with Z = 4, and unit cell parameters a = 15.434(6), b = 13.464(5), c = 17.679(7) angstrom, beta= 108.477(11)degrees. The ligands coordinate bidentate to metal yielding neutral complexes of the type cis-[ML(2)].