ESR AND MAGNETIC-PROPERTIES OF COPPER(II)-HYDROXYCARBOXYLIC ACID COMPLEXES

被引：4

作者：

AGARWALA, BV ^{[1
]}

机构：

[1] UNIV ALLAHABAD,CHEM LABS,ALLAHABAD 211002,UTTAR PRADESH,INDIA

来源：

INORGANICA CHIMICA ACTA | 1979年 / 36卷 / 02期

关键词：

D O I：

10.1016/S0020-1693(00)89394-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Hydroxycarboxylatocopper(II) complexes of the type Cu(oca)2, (Cu(m-ca)2 and Cu(hna)2 [o-ca = o-cresotic acid, m-ca = m-cresotic acid, hna = 2-hydroxy-3-naphthoic acid] systhsized in aqueous and alcoholic medium were studied by ESR and magnetic susceptibility measurements. The ESR spectra of 0-ca complexes show three lines and anomalous low magnetic moment values are observed at varying temperature (295-85 K). The results indicate a binuclear bridged structure with exchange interaction between Cu2+ pairs. m-ca Complexes are magnetically dilute and μeff values are nearly temperature independent including those of hna complexes. ESR parameters g∥, g⊥, gav and D have also been calculated. © 1979.

引用

页码：209 / 212

页数：4

共 18 条

[1]

AGARWAL BD, UNPUBLISHED

[2]

AGRAWAL BK, 1977, INDIAN J CHEM A, V15, P633

[3]

CHERKESOV AI, 1962, T ASTRAKHANSK TEKHN, V8, P25

[4] MIXED LIGAND CHELATES OF COPPER(2) [J].

CONDIKE, GF ;

MARTELL, AE .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1969, 31 (08) :2455-&

[5] POTENTIOMETRIC STUDIES ON HOMO AND HETERO CHELATES OF COPPER(II) WITH SOME HYDROXY-ACIDS [J].

DWIVEDI, K ;

CHANDRA, M ;

DEY, AK .

TRANSITION METAL CHEMISTRY, 1977, 2 (05) :186-189

[6]

FARADAY M, 1855, EXP RES ELECT LONDON, V3, P27

[7] QUANTITATIVE ASPECTS OF COLOUR REACTION BETWEEN IRON(3) + PHENOLS [J].

GORE, PH ;

NEWMAN, PJ .

ANALYTICA CHIMICA ACTA, 1964, 31 (02) :111-&

[8]

HULKOVA O, 1969, ACTA FAC PHARM U COM, V17, P73

[9] COPPER(2) COMPLEXES WITH SUBNORMAL MAGNETIC MOMENTS [J].

KATO, M ;

JONASSEN, HB ;

FANNING, JC .

CHEMICAL REVIEWS, 1964, 64 (02) :99-&

[10] MAGNETIC STUDIES WITH COPPER(2) SALTS .6. VARIABLE SINGLET-TRIPLET ENERGIES IN AMINE-SUBSTITUTED COPPER)2) ALKANOATES [J].

KOKOT, E ;

MARTIN, RL .

INORGANIC CHEMISTRY, 1964, 3 (09) :1306-&

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