Dinuclear copper (II) and nickel (II) systems with planar M2N2O2 bridge

Baral, S. ; Chakravorty, A. (1977) Dinuclear copper (II) and nickel (II) systems with planar M2N2O2 bridge Proceedings of the Indian Academy of Sciences - Section A, 86 (1). pp. 45-52. ISSN 0370-0089

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Official URL: http://www.ias.ac.in/j_archive/proca/86/1/45-52/vi...

Related URL: http://dx.doi.org/10.1007/BF03046651


The tridentate ligand systemb (abbreviated as inkR2) readily yield copper (II) and nickel (II) species of the formula M2 (inkR2)2(CLO4)2. 2xH2O (x=0–1). Dinuclear formulation is based on variable temperature magnetic susceptibility and conductivity data and on the known structure of some related systems. The Cu2 (inkR2)22+ species are strongly antiferromagnetic (−2J=600–800 cm−1) while the Ni2(inkR2)22+ species are diamagnetic. The major coordination sphere is planar around each metal (II). The metal ions in a dimer are linked by planar M2N2O2 bridge. The copper (II) and nickel (II) species freely form solid solutions. In these statistical scrambling of copper and nickel occur among the metal ion sites of the dimeric structure. Powder epr spectra of such mixed crystals are indicative of axial geometry around copper (II) ion.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Dinuclear Copper(II); Dinuclear Nickel (II) Complexes; Magnetic Properties
ID Code:95264
Deposited On:25 Oct 2012 07:12
Last Modified:19 May 2016 07:56

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