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Titolo:
Study of copper(II) polyazamacrocyclic complexes by electronic absorption spectrophotometry and EPR spectroscopy
Autore:
Geraldes, CFGC; Marques, MPM; de Castro, B; Pereira, E;
Indirizzi:
Univ Coimbra, Ctr Neurociencias, P-3049 Coimbra, Portugal Univ Coimbra Coimbra Portugal P-3049 ociencias, P-3049 Coimbra, Portugal Univ Coimbra, Dept Bioquim, Fac Ciencias & Tecnol, P-3049 Coimbra, Portugal Univ Coimbra Coimbra Portugal P-3049 & Tecnol, P-3049 Coimbra, Portugal Univ Coimbra, Unidad D Quim Fis Mol 1, Fac Ciencias & Tecnol, P-3049 Coimbra, Portugal Univ Coimbra Coimbra Portugal P-3049 & Tecnol, P-3049 Coimbra, Portugal Univ Porto, Fac Ciencias, CEQUP, Dept Quim, P-4169007 Porto, Portugal UnivPorto Porto Portugal P-4169007 Dept Quim, P-4169007 Porto, Portugal
Titolo Testata:
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
fascicolo: 3, , anno: 2000,
pagine: 559 - 565
SICI:
1434-1948(200003):3<559:SOCPCB>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR MAGNETIC-RESONANCE; AZATETRA-ACETIC ACIDS; TRIVALENT METAL-IONS; MACROCYCLIC LIGANDS; TETRAAZAMACROCYCLE-N,N',N'',N'''-TETRAACETIC ACIDS; CRYSTAL-STRUCTURES; ALKALINE-EARTH; CU-2+ COMPLEX; NICKEL(II); STABILITY;
Keywords:
macrocyclic ligands; copper; EPR spectroscopy; electronic spectrophotometry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Geraldes, CFGC Univ Coimbra, Ctr Neurociencias, Ap 3126, P-3049 Coimbra, Portugal Univ Coimbra Ap 3126 Coimbra Portugal P-3049 bra, Portugal
Citazione:
C.F.G.C. Geraldes et al., "Study of copper(II) polyazamacrocyclic complexes by electronic absorption spectrophotometry and EPR spectroscopy", EUR J INORG, (3), 2000, pp. 559-565

Abstract

Copper(II) mononuclear complexes with the polyazamacrocyclic ligands NOTA (1,4,7-triazacyclononane-N,N',N "-triacetate), DOTA (1,4,7,10-tetraazacyclo-dodecane-N,N',N ",N'''-tetraacetate), NOTP [1,4,7-triazacyclononane-N,N',N"-tris(methylenephosphonate)] and DOTP [1,4,7,10-tetraazacyclododecane-N,N',N ",N'''-tetrakis(methylenephosphonate)] were characterised in aqueous solution by electronic absorption spectrophotometry and electron paramagneticresonance (EPR) spectroscopy. While two isomeric species were detected by EPR spectroscopy in frozen samples of the polycarboxylate complexes, only one complex form was found for the poly(methylenephosphonate) systems. The results obtained are in accordance with a six-coordinate pattern for the metal centre, yielding tetragonally distorted complexes in solution, in agreement with previously reported studies on Cu-II complexes, both in solution and in the solid state.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 00:19:59