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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 8, Number 6
BKCSDE 8(6)
June 20, 1987

Title	Conformational Change of Optically Active [Co(acac)2(diamine)]+ Complexes in Some Organic Solvents
Author	Yang Kim, Chang Eon Oh*
Keywords
Abstract	The circular dichroism(CD) spectra of the optically active [Co(acac)2(diamine)]+ complexes were measured in the several protic and aprotic solvents, where acac = acetylacetonate anion and diamine = ethylenediamine and trimethylenediamine. The degree of the CD variation in protic solvents was enhanced as the dielectric constant decreases except n-butanol and benzylalcohol. And the degree of the CD variation in aprotic solvents was roughly increased as both dipole moment and dielectric constant decrease except aromatic solvents and the solvents having no dipole moment. It was deduced that the CD variations of the complexes have been due to the conformational change of acetylacetonate ligands coordinated to Co(Ⅲ) ion.
Page	441 - 444
Full Text	PDF

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