Transition metal complexes with thiosemicarbazide-based ligands. XLIV. The supramolecular arrangement in the Ni(II) complexes of S-methylisothiosemicarbazide
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The reaction of the octahedral complex [Ni(lTSC)(2)(NO3)(2)] (1) with sodium terephthalate yielded the novel octahedral complex [Ni(ITSC)(2)(H2O)(2)](tere) (.) 2H(2)O (2), (ITSC = S-methylisothiosemicarbazide, tere = terephthalate dianion). The X-ray structural analysis of the starting and the final compound showed that they have a centrosymmetric octahedral geometry with the NiN4O2 chromophore. As a result of the non-covalent intermolecular interactions, molecules of both complexes tend to associate into the characteristic 2D blocks separated by S-methyl moieties. In the case of 2, the terephthalate anions, located between the S-methyl groups, enable the transformation of the 2D into 3D supramolecular structure. The similar structural arrangement is also found, in two previously published structures. (C) 2004 Published by Elsevier B.V.
Кључне речи:nickel(II) complexes / S-methylisothiosemicarbazide / 2D supramolecular block / X-ray analysis / supramolecular structure
Извор:Inorganic Chemistry Communications, 2005, 8, 1, 9-13
ISSN: 1387-7003 (print)