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Title: Mossbauer, EPR, magnetic properties and thermally induced stereochemical studies on some double complex salts of cyclic ligand containing cationic copper(II) complexes and hexacyanoferrate(III) anion in the solid state
Authors: Kundu, Parimal
Dey, Subrata Kumar
Choudhury, Chirantan Roy
Banerjee, Dilip
Kumar, Sanjoy
Bhattacharya, Ranga Lal
Mitra, Samiran
Issue Date: Jul-2003
Publisher: NISCAIR-CSIR, India
Abstract: Novel cyanide-bridged double complex salts of cationic copper(II) salts with cyclic ligand, viz., morpholine (Morph), N-methyl morpholine (Me-Morph) and homopiperazine (Hpz) and hexacyanoferrate(III) ion have been synthesized and characterized. Mossbauer spectra of the complexes have been recorded at 80 K and 300 K to investigate the metal-metal charge transfer and the impact of cyclic ligand present in the cationic part of the double complex salt on the Mossbauer spectra of hexacyanoferrate(III) ion. Metal-metal charge transfer transition has been supported by electronic spectra and magnetic susceptibility values. Variable temperature EPR spectra have been recorded to study the distortion of crystal systems. Activation energy and inception temperature for the thermochemical reactions show that the order of stability of the double complex salts follows the trend, Hpz>Me-Morph>Morph.
Page(s): 1604-1608
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(07) [July 2003]

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