Experimental and theoretical studies of palladium(II) and platinum(II) complexes derived from di-(2-pyridyl)methyl-N,N′-dibenzyldithiocarbamate

Add time:07/28/2019    Source:sciencedirect.com

Di-(2-pyridyl)methyl-N,N′-dibenzyldithiocarbamate (L) and their metal complexes of formula [MII(L)Cl2], M = Pd (1); M = Pt, (2), and [PdII(L)2](BF4)2 (3) were synthesized and characterized in solution and in solid state by NMR, elemental analysis and vibrational spectroscopy, respectively. The crystal structures of the 1, 2, and 3 were stablished by X-ray single crystal diffraction. In all complexes, the molecular structures displayed the formation of six-membered chelate rings with a square planar local geometry around the MII cations. The N,N′-dibenzyldithiocarbamate group is located in a flagpole position, enhancing the formation of intramolecular M⋯S interactions in solid state. The nature of the M⋯S and CH⋯S interactions in complexes 1–3 was analyzed by means of density functional methods.

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