Synthesis and characterization of metal dithiocarbamate derivatives of 3-((pyridin-2-yl)methylamino)propanenitrile: Crystal structure of [3-((pyridin-2-yl)methylamino)propanenitrile dithiocarbamato] nickel (II)

摘要

Four metal dithiocarbamate complexes (Zn, Ni, Hg and Sn) based on an amine containing pyridyl and nitrite groups, 3-((pyridin-2-yl)methylamino)propanenitrile, were prepared and characterized by their elemental analysis, spectroscopic data (such as IR, H-1 and C-13 NMR), TGA analysis and X-ray crystallography of the Ni(II) complex. The presence of a band in the 1000 cm(-1) region in the IR spectra, without any splitting, confirms the symmetrical bidentate bonding mode of the dithiocarbamate ligand. Also, the short thioureide C=N distance in the X-ray analysis of the Ni complex confirms the delocalization of it electrons over the S2CN moiety and strong double bond character between the carbon and nitrogen atoms. In addition, the X-ray analysis reveals that C-H center dot center dot center dot pi contacts between the -CH2- groups and pyridine ring, and intermolecular C-H center dot center dot center dot N and C-H center dot center dot center dot S hydrogen bonds are effective in the stabilization of the crystal structure and formation of a 3D supra-molecular complex. (C) 2015 Elsevier Ltd. All rights reserved.