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Titolo:
VARIABLE COORDINATION AND CONFORMATION OF THE 3-CYANO-2,4-PENTANEDIONATO ANION IN A MIXED-LIGAND BINUCLEAR COPPER(II) CHELATE
Autore:
TSIAMIS C; TZAVELLAS LC; STERGIOU A; ANESTI V;
Indirizzi:
UNIV THESSALONIKI,DEPT CHEM THESSALONIKI 54006 GREECE UNIV THESSALONIKI,DEPT PHYS THESSALONIKI 54006 GREECE
Titolo Testata:
Inorganic chemistry
fascicolo: 17, volume: 35, anno: 1996,
pagine: 4984 - 4988
SICI:
0020-1669(1996)35:17<4984:VCACOT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-STRUCTURE; CRYSTAL-STRUCTURE; COMPLEXES; SPECTRA; MODES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
C. Tsiamis et al., "VARIABLE COORDINATION AND CONFORMATION OF THE 3-CYANO-2,4-PENTANEDIONATO ANION IN A MIXED-LIGAND BINUCLEAR COPPER(II) CHELATE", Inorganic chemistry, 35(17), 1996, pp. 4984-4988

Abstract

The addition of dipyridylamine to bis(3-cyano-2,4-pentanedionato)copper(II) Cu(NC-acac)(2), induces changes in the mode of interaction and the conformation of the NC-acac(-) anion. The structure of the resulting binuclear compound was determined from a single microcrystal (monoclinic, space group P2(1), a = 7.894(7) Angstrom, b = 25.550(24) Angstrom, c = 11.661(13) Angstrom, beta = 106.10(8)degrees, Z = 2, R(1) = 0.0564, (w)R(2) = 0.1197). In the addition compound {[Cu(NC-acac)dipyamH](NC-acac)}2 when the NC-acac(-) acts as a chelating and bridging ligand, it assumes the commonly observed U(Z,Z) conformation, while behavior as weakly N-coordinated unidentate counteranion imposes the rarely encountered S(Z,E) conformation. In the [Cu(NC-acac)dipyamH] (NC-acac)] entities one of the copper(II) centers is a 4 + 2 Jahn-Teller complex while the other is a square-based pyramid.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 14:25:43