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Titolo:
Synthesis, molecular structure and electrochemistry of cobalt(II) complexes of 2,2 ': 6 ',2"-terpyridine macrocycles
Autore:
Marquez, VE; Anacona, JR; Barbarin, CR;
Indirizzi:
Univ Oriente, Dept Quim Aplicada, Cumana, Venezuela Univ Oriente Cumana Venezuela te, Dept Quim Aplicada, Cumana, Venezuela Univ Oriente, Dept Quim, Cumana, Venezuela Univ Oriente Cumana Venezuela niv Oriente, Dept Quim, Cumana, Venezuela Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Mexico Univ Autonoma Nuevo Leon Monterrey Mexico ncias Quim, Monterrey, Mexico
Titolo Testata:
POLYHEDRON
fascicolo: 15-16, volume: 20, anno: 2001,
pagine: 1885 - 1890
SICI:
0277-5387(20010630)20:15-16<1885:SMSAEO>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
2,2'-6',2''-TERPYRIDINE MACROCYCLES; COORDINATION CHEMISTRY; NICKEL(II) COMPLEXES; COPPER(I) COMPLEXES; ELECTRON-TRANSFER; OXIDATION-STATE; LIGAND; STABILIZATION; REDUCTION; CRYSTAL;
Keywords:
cobalt(II) complexes; molecular structures; electrochemistry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Anacona, JR Univ Oriente, Dept Quim Aplicada, Apartado Postal 255, Cumana,Venezuela Univ Oriente Apartado Postal 255 Cumana Venezuela Venezuela
Citazione:
V.E. Marquez et al., "Synthesis, molecular structure and electrochemistry of cobalt(II) complexes of 2,2 ': 6 ',2"-terpyridine macrocycles", POLYHEDRON, 20(15-16), 2001, pp. 1885-1890

Abstract

The macrocycle L, prepared by template condensation of bis-6,6"-(alpha -methylhidrazino)-4'phenyl-2,2':6 "2'-terpyridine with glyoxal, forms a stablecrystalline complex of cobalt(II) [Co(L)(H2O)(2)][PF6](2) which has been used as a starting material to prepare, for electrochemical studies, a series of seven coordinate cobalt(II) complexes [Co(L)X-2][PF6](2) (X = pyridine, 4-cianopyridine, 4-aminopyridine, 4-dimethylaminopyridine, pirazine, imidazole, 1-methylimidazole, 2-methylimidazole, and trimethylphosphite). Cyclic voltammetry of the aquo complex in DMSO show one reversible reduction wave at-1.35 V versus Ag \ AgBF4 reference electrode and controlled potential electrolysis in the presence of trimethylphosphite affords a diamagnetic species which has been assigned as a mononuclear d(8) Co(I) species. The crystal and molecular structure of [Co(L)(imidazole)(2)][PF6](2). Me2CO shows the metal to be in a pentagonal-bipyramidal N-7 environment. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 01:02:03