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Titolo:
Cu(II) complexes with pyrazole-derived ligands. Crystal structure of {[diaquanitrato(3-phenyl-5-(2-pyridyl)pyrazole)]copper(II)} nitrate
Autore:
Pons, J; Chadghan, A; Casabo, J; Alvarez-Larena, A; Piniella, JF; Ros, J;
Indirizzi:
Univ Autonoma Barcelona, Dept Quim, Unitat Quim Inorgan, E-08193 Barcelona, Spain Univ Autonoma Barcelona Barcelona Spain E-08193 E-08193 Barcelona, Spain Univ Autonoma Barcelona, Dept Geol, Unitat Cristallog, E-08193 Barcelona, Spain Univ Autonoma Barcelona Barcelona Spain E-08193 E-08193 Barcelona, Spain
Titolo Testata:
POLYHEDRON
fascicolo: 19, volume: 20, anno: 2001,
pagine: 2531 - 2536
SICI:
0277-5387(20010830)20:19<2531:CCWPLC>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
COPPER(II) COMPLEXES; MOLECULAR-STRUCTURE; COORDINATION CHEMISTRY; ELECTRONIC-PROPERTIES; DERIVATIVE LIGAND; DINUCLEAR; MONOHYDRATE; COBALT(II); EXCHANGE;
Keywords:
copper complexes; pyrazole complexes; crystal structures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Pons, J Univ Autonoma Barcelona, Dept Quim, Unitat Quim Inorgan, E-08193 Barcelona, Spain Univ Autonoma Barcelona Barcelona Spain E-08193 Barcelona, Spain
Citazione:
J. Pons et al., "Cu(II) complexes with pyrazole-derived ligands. Crystal structure of {[diaquanitrato(3-phenyl-5-(2-pyridyl)pyrazole)]copper(II)} nitrate", POLYHEDRON, 20(19), 2001, pp. 2531-2536

Abstract

Reaction of the ligands 3-phenyl-5-(2-pyridyl)pyrazole (HL0) and 3-phenyl-5-(6-methyl-(2-pyridyl))pyrazole (HL1) with Cu(NO3)(2). 3H(2)O and CuX2. xH(2)O (X = Cl, Br) gives complexes with stoichiometry Cu(HL0)(2)X-2. xH(2)O,Cu(HL1)(2)X-2. EtOH, Cu(HL)X-2, Cu(HL)(2)(NO3)(2). xH(2)O (HL = HL0, HL1) and Cu(HL0)(NO3)(2). 2H(2)O. The new complexes were characterised by elemental analyses, conductivity measurements and infrared and electronic spectroscopy. The crystal and molecular structure of [Cu(HL0)(NO3)(H2O)(2)](NO3) consists of discrete cations and NO3 anions linked by hydrogen bonds. The cation complex [Cu(HL0)(NO3)(H2O2)(2)](+) contains a copper(II) with a distorted tetragonal pyramid geometry (tau = 0.094), with a H2O ligand occupying the apical site. The penta-coordinated metal atom is bonded to one pyridinic nitrogen, one pyrazolic nitrogen, one nitrate and two water molecules. The ligand HL0 is not completely planar. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 27/09/20 alle ore 11:54:40