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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 24, Number 3
JKCSEZ 24(3)
June 20, 1980

Title	Magnetic Property of μ-Peroxo-bis[bis(diphenylglyoximato)iron(Ⅲ)] μ-Peroxo-bis[bis(diphenylglyoximato)iron(Ⅲ)]의 자기적 성질
Author	Chong Shik Chin, L. Vaska 진종식, L. Vaska
Keywords
Abstract	팔면체형 철(Ⅱ)착물 [Fe(DPGH)2(NH3)2]과 산소분자의 반응에서 생성된 산소화생성물, [(DPGH)2FeO2Fe(DPGH)2]의 자기모멘트를 측정하였다. 산소화 생성물내의 철에 대한 자기모멘트는 298˚K에서 3.60 B.M (Bohr Magneton)이며 온도가 내려 감에따라 감소되어 4.2˚K에선 1.65 B.M의 값을 보여준다. 이상의 측정결과는 다음과 같이 설명될 수 있다. (1) 산소화생성물내의 두개의 철(Ⅲ)은 중간스핀상태(S=3/2)를 갖는다. (2) 분자내의 두개의 철(Ⅲ)은 서로 약한 반강자성 짝지음을 일으킨다. 짝지음 상수는 J=-cm-1정도이다. It was observed that the magnetic moment for iron in [(DPGH)2FeO2Fe(DPGH)2], the oxygenation product of a octahedral iron(Ⅱ) complex, [Fe(DPGH)2(NH3)2], decreases with decreasing temperature from μ = 3.60 B.M (Bohr Magneton) per iron at 298˚K down to μ = 1.65 B.M per iron at 4.2˚K. This observation may be explained by a weak antiferromagnetic coupling between two iron(Ⅲ) atoms of intermediate spin state (S = 3/2) in the molecule with the coupling constant J = -l cm-1.
Page	233 - 238
Full Text	PDF

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