Synthesis, characterization and thermal studies of 2,2′-bipyridine adduct of bis-(N-alkyl-N-phenyl dithiocarbamato-S,S′)cadmium(II)
摘要:
Three 2,2'-bipyridine adducts of alkyl-phenyl dithiocarbamate cadmium(II) formulated as [Cd(mpdtc)(2)bpy] (1), [Cd(epdtc)(2)bpy] (2), [Cd(bpdtc)(2)bpy] (3) have been synthesized and characterized by elemental analysis, FTIR, H-1 and C-13 NMR spectroscopy. Two of the compounds were further characterized by single crystal X-ray diffraction analysis. The two compounds belong to the monoclinic space group P2(1)/c. Single crystal X-ray analysis reveals octahedral coordination around the Cd(II) ions involving two molecules of dithiocarbamate acting as bidentate chelating ligands through the S-atom and one bidentate bipyridine through the N-atoms. Each of the compounds crystallizes with a molecule of chloroform. The thermal decomposition profiles of the compounds and EDX analysis of the residues showed that the compounds decomposed to their respective metal sulphides. They might thus serve as single molecule precursors for metal sulphides thin films or nanoparticles. (C) 2012 Elsevier B.V. All rights reserved.
Synthesis and characterization of metal complexes of N-alkyl-N-phenyl dithiocarbamates
摘要:
Ammonium N-ethyl-N-phenyl dithiocarbamate (L-1) and N-butyl-N-phenyl dithiocarbamate (L-2), and their group 12 metal complexes formulated as Zn2L41, CcL(2)(1), HgL21, Zn2L42, CdL22, HgL22 have been synthesized and characterized by elemental analyses, IR, H-1 and C-13 NMR spectroscopy. The crystal structures of the zinc complexes (Zn2L41 and Zn2L42) are also reported. Single crystal analyses of the two complexes revealed the presence of distorted trigonal bipyramidal and tetrahedral coordination geometry about the metal ions. The dithiocarbamate acts as bidentate chelating and bidentate bridging ligands between the metal ions giving centrosymmetric dimeric molecules. The apparent substitution of the ethyl substituents in L-1 by the butyl groups in L-2 results in profound change in structure. (C) 2010 Elsevier Ltd. All rights reserved.