XAFS Investigation of Chromium(Ⅲ)-Amino Acid-Nicotinic Acid Mixed Ligand Complexes

HU Rong; LIU Jing; M.I.Abbas; HU Tian-Dou; Xie Ya-Ning; FENG Wei-Yue; CHAI Zhi-Fang; Wu Zi-Yu

Chinese Physics C> 2003, Vol. 27> Issue(S1) : 15-18

XAFS Investigation of Chromium(Ⅲ)-Amino Acid-Nicotinic Acid Mixed Ligand Complexes

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China

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Abstract：
Chromium(Ⅲ) can form mixed ligand complexes with amino-acids(glycine,glutamic acid,cysteine et al) and nicotinic acid.Chromium(Ⅲ) has been recognized as a trace element essential for both animal and human nutrition.The characteristics of local structures around Cr in chromium(Ⅲ)-amino acid-nicotinic acid mixed ligand complexes are investigated by EXAFS.The structural parameters of the nearest neighbors around Cr are obtained by simulating the first coordination peak in RSF.

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HU Rong, LIU Jing, M.I.Abbas, HU Tian-Dou, Xie Ya-Ning, FENG Wei-Yue, CHAI Zhi-Fang and Wu Zi-Yu. XAFS Investigation of Chromium(Ⅲ)-Amino Acid-Nicotinic Acid Mixed Ligand Complexes[J]. Chinese Physics C, 2003, 27(S1): 15-18.

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Received: 2003-11-21
Revised: 1900-01-01

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