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Title: X-band electron paramagnetic resonance spectra of imidazolate-bridged copper(II)-copper(II) and copper(II)-zinc(II) complexes of glycylvaline
Authors: Patel, R N
Kumar, Subodh
Pandeya, K B
Issue Date: Nov-2000
Publisher: NISCAIR-CSIR, India
Abstract: X-band EPR spectra of imidazolate-bridged [(glyval)Cu-im-Cu-(glyvai)]Na and [(glyval)Cu-im-Zn(glyval)]Na, where glyval = glycylvaline, im = imidozolate ion, are described.The EPR and electronic spectra of related mononuclear complexes viz., aquoglycylvalinato copper(II) and imidazole glycylvalinato copper(II) are also described. A pH dependent EPR study of frozen 50% aqueous DMSO solution of [(glyval)Cu-im-Zn(glyval)]Na suggest that the complex is stable in pH range (7.15-9.5). At lower pH (< 7.15), the imidazolate bridge breaks on the zinc side with decreasing pH value.
Page(s): 1124-1130
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.39A(11) [November 2000]

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