Synthesis, crystal structure, and antibacterial activity of two new mononuclear nickel(II) complexes of a NNS Schiff base

Autor:	Rajat Saha, Mahendra Ghosh, Debasis Bandyopadhyay, Michel Fleck, Manas Layek
Rok vydání:	2014
Předmět:	Schiff base Thiocyanate Stereochemistry Supramolecular chemistry chemistry.chemical_element Crystal structure chemistry.chemical_compound Crystallography Nickel Perchlorate chemistry Octahedron Materials Chemistry Azide Physical and Theoretical Chemistry
Zdroj:	Journal of Coordination Chemistry. 67:3371-3379
ISSN:	1029-0389 0095-8972
DOI:	10.1080/00958972.2014.960861
Popis:	Two new mononuclear nickel(II) complexes, [Ni(L)(N3)] (1) and [Ni(L)2(NCS)2] (2), where HL = 2-{[phenyl(pyridin-2-yl)methylidene]amino}benzenethiol, a tridentate Schiff base derived from 2-aminothiophenol and 2-benzoylpyridine, have been prepared and characterized. The syntheses of 1 and 2 have been achieved by the reaction of equimolar amounts of nickel perchlorate and HL in the presence of azide and thiocyanate, respectively. The complexes have been characterized by microanalytical, spectroscopic, single-crystal X-ray diffraction, and other physicochemical studies. Structural studies reveal that 1 and 2 adopt two different geometries, distorted square planar in 1 and octahedral in 2. The two mononuclear complex units are held together by π…π or C–H…π weak intermolecular interactions to develop supramolecular networks in their solid states. The antibacterial activity of 1, 2 and their constituent Schiff base has been tested against some gram(+) and gram(−) bacteria.
Databáze:	OpenAIRE
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