Synthesis and Properties of Substituted Nicotinic Acid Chromium (Ⅲ) Salen Complexes

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (4): 492.

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Synthesis and Properties of Substituted Nicotinic Acid Chromium (Ⅲ) Salen Complexes

ZHOU Bao-Xue, SHANG Shu-Chuan, ZOU Li-Zhuang, WANG Da-Qing, ZHANG Xiao-Kai, ZHU Li, REN Jian-Cheng

Department of Chemistry, Shandong Normal University, Jinan, 250014

Received:1993-07-13 Revised:1993-10-25 Online:1994-04-24 Published:1994-04-24

Abstract

Abstract: Four kinds of carboxylic acid chromium (Ⅲ) Salen complexes Cr (Salen) L (H₂O)_n (L=nicotinate, isonicotinate, pyromucate, benzoate;n=1 or 2) have been synthesized and characterized by elemental analysis, molar conductance, IR, UV , TGand electron microscope.Carboxylate oxygen-bound chromium (Ⅲ) complexes have been observed in these complexes.Atransmission electron microscope study of Cr (Salen) (nicotinate) (H₂O)₂ showed a hexagonal system structure in the crystal.The TGanalysis in nitrogen for four complexes showed a loss of all water molecules corresponding to the first step, the final decomposition leads to Cr₂O₃.

Key words: Glucose tolerance factor, Chromium (Ⅲ) complexes, Synthesis

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ZHOU Bao-Xue, SHANG Shu-Chuan, ZOU Li-Zhuang, WANG Da-Qing, ZHANG Xiao-Kai, ZHU Li, REN Jian-Cheng. Synthesis and Properties of Substituted Nicotinic Acid Chromium (Ⅲ) Salen Complexes[J]. Chem. J. Chinese Universities, 1994, 15(4): 492.

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Synthesis and Properties of Substituted Nicotinic Acid Chromium (Ⅲ) Salen Complexes

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