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Titolo:
Diaquabis(3,6-dioxaheptanoato)copper(II): crystal structure and EPR characteristics
Autore:
Fawcett, J; Laurie, SH; Simpson, C; Symons, MCR; Taiwo, FA; Hawkins, I;
Indirizzi:
De Montfort Univ, Dept Chem, Leicester LE1 9BH, Leics, England De MontfortUniv Leicester Leics England LE1 9BH LE1 9BH, Leics, England De Montfort Univ, Sch Pharmaceut Sci, Leicester LE1 9BH, Leics, England DeMontfort Univ Leicester Leics England LE1 9BH LE1 9BH, Leics, England Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England Univ Leicester Leicester Leics England LE1 7RH er LE1 7RH, Leics, England Rhodia Ltd, Manchester M11 4AT, Lancs, England Rhodia Ltd Manchester Lancs England M11 4AT ester M11 4AT, Lancs, England
Titolo Testata:
INORGANICA CHIMICA ACTA
fascicolo: 1-2, volume: 312, anno: 2001,
pagine: 245 - 248
SICI:
0020-1693(20010129)312:1-2<245:DCSAEC>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBOXYLATE COMPLEXES; STABILITY;
Keywords:
copper(II) complexes; X-ray crystal structures; EPR spectrum;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Laurie, SH De Montfort Univ, Dept Chem, The Gateway, Leicester LE1 9BH, Leics, England De Montfort Univ The Gateway Leicester Leics England LE1 9BH nd
Citazione:
J. Fawcett et al., "Diaquabis(3,6-dioxaheptanoato)copper(II): crystal structure and EPR characteristics", INORG CHIM, 312(1-2), 2001, pp. 245-248

Abstract

The structure of the title compound has been determined by X-ray diffraction at 190 K. The complex has an all trans configuration with an elongated tetragonally distorted octahedral CuO6 chromophore. The elongated axis corresponding to the trans-Cu-O(ether) bonds. The ligand molecules are bidentatevia the carboxyl and the 3-ether O atoms; the 6-ether O atoms are not coordinated and are remote from the Cu centres. The bond lengths to the Cu centres are Cu-O(ether) 2.355 Angstrom, Cu-O(Carboxyl) 1.933 Angstrom and Cu-OH, 1.995 Angstrom. The EPR spectrum of both the powder and frozen solution forms is typical of a rhombic system with a d(x2-y2)(1) electronic configuration. There were no significant differences in spectra recorded over the temperature range 77 K to room temperature. These results are discussed in relation to earlierpublished results on closely related oxa-carboxyl complexes. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 06/04/20 alle ore 02:08:21