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Title: Synthesis, structure and properties of [Cu(L)(NCO)]X (L = tetradentate schiff bases; X = ClO4, PF6)
Authors: Rahaman, Sk. Hafijur
Ghosh, Rajarshi
Bose, Doyel
Fun, Hoong-Kun
Ghosh, Barindra Kumar
Issue Date: Sep-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int. Cl.7 C07F 1/08; C07F 9/14
Abstract: Four copper(II) complexes of the type [Cu(L)(NCO)]X (1-4) [L=N,N' -(bis(pyridin-2-yl)formylidene)butane-1 ,4-diamine (bpfd) or N,N'-(bis(pyridin-2-yl)benzylidene)butane-1 ,4-diamine (bpbd); X = ClO4, PF6] have been synthesised and characterised on the basis of microanalytical, spectroscopic, magnetic, electrochemical and other physicochemical properties. X-ray diffraction study of complex 1 (L= bpfd, X = ClO4 ) reveals copper(II) ion in a distorted trigonal bipyramidal environment through coordination of the metal centre by two pyridine N atoms and two imine N atoms of the schiff base with the fifth position occupied with N atom of terminal NCO'. The tetradentate chelator is folded in the butylenic part. I R spectra of the complexes show asymmetric and symmetric stretching vNCO vibrations at ~ 2250 and ~1320 cm-1 respectively indicating N-bonding of NCO'. Electrochemi cal electron transfer study reveals CUII-CUI reduction in methanolic solutions.
Page(s): 1901-1905
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(09) [September 2004]

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