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Titolo:
V(IV)O-LN(III) COMPLEXES (LN=LA, EU OR GD) OF THE COMPARTMENTAL LIGAND N,N'-BIS(3-HYDROXYSALICYLIDENE)ETHYLENEDIAMINE
Autore:
SAKAMOTO M; ISHIKAWA T; NISHIDA Y; SADAOKA Y; MATSUMOTO A; FUKUDA Y; SAKAI M; OHBA M; SAKIYAMA H; OKAWA H;
Indirizzi:
YAMAGATA UNIV,FAC SCI,DEPT MAT & BIOL CHEM YAMAGATA 990 JAPAN EHIME UNIV,FAC ENGN,DEPT APPL CHEM MATSUYAMA EHIME 790 JAPAN EHIME UNIV,FAC EDUC,CHEM LAB MATSUYAMA EHIME 790 JAPAN OCHANOMIZU UNIV,FAC SCI,DEPT CHEM,BUNKYO KU TOKYO 112 JAPAN INST MOLEC SCI,INSTRUMENT CTR OKAZAKI AICHI 444 JAPAN KYUSHU UNIV,FAC SCI,DEPT CHEM,HIGASHI KU FUKUOKA 812 JAPAN
Titolo Testata:
Journal of alloys and compounds
fascicolo: 1-2, volume: 238, anno: 1996,
pagine: 23 - 27
SICI:
0925-8388(1996)238:1-2<23:VC(EOG>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
LN; MOLECULAR-STRUCTURE; COPPER(II) IONS; CRYSTAL; GADOLINIUM(III); BINDING;
Keywords:
HETERONUCLEAR COMPLEXES; OXOVANADIUM(IV)-LANTHANIDE(III) COMPLEXES; MAGNETIC PROPERTIES; FLUORESCENT PROPERTIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
M. Sakamoto et al., "V(IV)O-LN(III) COMPLEXES (LN=LA, EU OR GD) OF THE COMPARTMENTAL LIGAND N,N'-BIS(3-HYDROXYSALICYLIDENE)ETHYLENEDIAMINE", Journal of alloys and compounds, 238(1-2), 1996, pp. 23-27

Abstract

Mononuclear oxovanadium(IV) complex VO(H(2)dhbaen) and heteronuclear oxovanadium(IV)-lanthanide(III) complexes VOLn(dhbaen)(NO3)(H2O)(2.5) were synthesized, where H(4)dhbaen denotes N,N'-bis(3-hydroxysalicylihene)ethylenediamine. IR spectra showed that V(IV)O and Ln(III) ions are located at the endogenous N2O2- and the exogeneous O-4-coordination sites of the ligand respectively. Based on circular dichroism (CD) spectra, it was suggested that amino alcohols are specifically bound at the VO-Ln heterometal center, through the nitrogen to the VO-site and through the oxygen to the Ln-site. Magnetic susceptibility measurementsin the range 4.2 to 260 K revealed that the magnetic interaction between V(IV)O and Gd(III) ions is almost negligible. The fluorescence intensity of mononuclear Eu(III) complex markedly decreased on forming the heteronuclear V(IV)O-Eu(III) complex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 13:15:09