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Title: | Synthesis, crystal structures and spectral studies of square planar nickel(II) complexes containing an ONS donor Schiff base and triphenylphosphine |
Authors: | Muthu, Tamizh, M. Mereiter, K. Kirchner, K. Ramachandra, Bhat, B. Karvembu, R. |
Issue Date: | 2009 |
Citation: | Polyhedron, 2009, Vol.28, 11, pp.2157-2164 |
Abstract: | Five mononuclear nickel(II) complexes, viz. [Ni(L1)(PPh3)] (1), [Ni(L2)(PPh3)] (2), [Ni(L3)(PPh3)] (3), [Ni(L4)(PPh3)] (4) and [Ni(L5)(PPh3)] (5) (where L1, L2, L3, L4 and L5 are dianions of N-(2-mercaptophenyl)salicylideneimine, 5-methyl-N-(2-mercaptophenyl)salicylideneimine, 5-chloro-N-(2-mercaptophenyl)salicylideneimine, 5-bromo-N-(2-mercaptophenyl)salicylideneimine and N-(2-mercaptophenyl)naphthylideneimine, respectively), have been synthesized and characterized by means of elemental analysis, electronic, IR, 1H, 13C and 31P NMR spectroscopy. Single crystal X-ray analysis of two of the complexes (1 and 5) has revealed the presence of a square planar coordination geometry (ONSP) about nickel. The crystal structures of the complexes are stabilized by intermolecular ?-? stacking between the ligands (L) and by various C-H ? interactions. 2009 Elsevier Ltd. All rights reserved. |
URI: | http://idr.nitk.ac.in/jspui/handle/123456789/13316 |
Appears in Collections: | 1. Journal Articles |
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