Journal
INORGANICA CHIMICA ACTA
Volume 378, Issue 1, Pages 303-306Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2011.08.026
Keywords
Nickel(II); Ammonium; Schiff base; N2O4 ligand; Crystal structure
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Funding
- University Grants Commission, CAS-UGC, New Delhi
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The 1:2 condensation of o-phenelenediamine and o-vanilline yields a compartmental N2O4 ligand N,N'(1,2-Phenylene)-bis(3-methoxysalicylideneimine) [H2L]. When nickel(II) thiocyanate is added to the methanol solution of H2L, followed by addition of ammonium thiocyanate, an unusual nickel(II) compound, [NH4(NiL)(2)SCN]center dot H2O (1), is separated out in which an ammonium ion is sandwiched between two neutral square planner NiL moieties. Hydrogen bonding interactions are observed among the ammonium ion, NiL moieties, the thiocyanate anion and the water of crystallization. The compound is characterized by C, H, N analysis, UV-VIS and IR spectroscopy, room temperature magnetic susceptibility measurement and X-ray crystal diffraction study. The compound crystallizes in monoclinic space group P2(1/n) with a = 13.8636(7) angstrom, b = 14.0267(7) angstrom, c = 22.2715(10) angstrom and beta = 94.301(3)degrees. (C) 2011 Elsevier B.V. All rights reserved.
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