| Abstract |
The reaction of CCl3CN and ammonia in the presence of metal salts [Ni(CH3COO)2, CuCl2 or Pd(CH3COO)(2)] in DMSO afforded mononuclear complexes of general formula (M[NH = C(CCl3)NC(CCl3) = NHJ(2))[(CH3)(2-)SO](2) [M = Ni(1), Cu(2), Pd(3)]. The complexes were characterized by ESI-MS, IR spectroscopy, elemental and single-crystal X-ray diffraction analyses. In 1-3, the metal atom is in an inversion centre and possesses a square-planar coordination environment with two uninegatively charged 1,3,5-triazapentadienato chelators. In the solid state, the (N)H atoms of the ligands interact with oxygen atoms of (CH3)(2)S=O with formation of the six-membered intermolecular resonance assisted hydrogen bonding, while Cl atoms of the CCl3 groups participate in Cl center dot center dot center dot Cl interactions thus generating 2D supramolecular assembly of distinctive geometry. Crown Copyright C) 2013 Published by Elsevier B.V. All rights reserved. |
