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Titolo:
Dinuclear cobalt(II) complexes of an acyclic phenol-based dinucleating ligand with four methoxyethyl chelating arms - First magnetic analyses in an axially distorted octahedral field
Autore:
Sakiyama, H; Ito, R; Kumagai, H; Inoue, K; Sakamoto, M; Nishida, Y; Yamasaki, M;
Indirizzi:
Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan Yamagata Univ Yamagata Japan 9908560 Biol Chem, Yamagata 9908560, Japan Inst Mol Sci, Okazaki, Aichi 4448585, Japan Inst Mol Sci Okazaki Aichi Japan 4448585 i, Okazaki, Aichi 4448585, Japan Rigaku Corp, Xray Res Lab, Tokyo 1968666, Japan Rigaku Corp Tokyo Japan 1968666 Corp, Xray Res Lab, Tokyo 1968666, Japan
Titolo Testata:
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
fascicolo: 8, , anno: 2001,
pagine: 2027 - 2032
SICI:
1434-1948(200108):8<2027:DCCOAA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMINOPEPTIDASE;
Keywords:
dinuclear cobalt(II) complex; dinucleating ligand; crystal structure; magnetic properties;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Sakiyama, H Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan Yamagata Univ Yamagata Japan 9908560 Yamagata 9908560, Japan
Citazione:
H. Sakiyama et al., "Dinuclear cobalt(II) complexes of an acyclic phenol-based dinucleating ligand with four methoxyethyl chelating arms - First magnetic analyses in an axially distorted octahedral field", EUR J INORG, (8), 2001, pp. 2027-2032

Abstract

An end-off type acyclic ligand with four methoxyethyl chelating arms, 2,6-bis[bis(2-methoxyethyl)aminomethyl]-4-methylphenol [H(bomp)], formed dinuclear cobalt(II) complexes [Co-2(bomp)(MeCO2)(2)]BPh4 (1) and [Co-2(bomp)(PhCO2)(2)]BPh4 (2). X-ray analysis revealed that complex 1(. )CHCl(3) contains two cobalt ions bridged by a phenolic oxygen and two acetate groups, forming a mu -phenoxo-bis(mu -acetato)dicobalt(II) core. Magnetic susceptibility was measured for I and 2 over the temperature range 1.8-300 K. The data were successfully analyzed using a new theoretical method assuming an axially distorted octahedral field (Delta = 753 and 775 cm(-1), respectively) for each cobalt(II) ion to reveal weak antiferromagnetic interactions (J = -0.96and -1.74 cm(-1), respectively).

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Documento generato il 29/09/20 alle ore 20:27:00