Studies on Coenzyme B12 Model Compounds(Ⅵ)─The Influence of Axial and Equatorial Ligands on the Stabilities or Co-C Bonds of RCo(salen)L and RCo(SB)Complexes

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (5): 637.

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Studies on Coenzyme B₁₂ Model Compounds(Ⅵ)─The Influence of Axial and Equatorial Ligands on the Stabilities or Co-C Bonds of RCo(salen)L and RCo(SB)Complexes

HAN De-Yan, CHEN Hui-Lan, WU Qin-Yuan, ZHOU Jin-Suo, TANG Wen-Xia

Department of Chemistry, Coordination Chemistry State Key Laboratory, Nanjing University, Nanjing, 210008

Received:1993-07-30 Revised:1994-01-20 Online:1994-05-24 Published:1994-05-24

Abstract

Abstract: Two series of alkylcobalt Schiff base complexes RCo(chel)L(where R=CH₃,C₂H₅, n-C₃H₇, n-C₄H₉, i-C₄H₉; chel=salen and SB; L=py,γ-pic, PPH₃)were synthesized and characterized in which RCo(SB)Land five-coordinate C₂H₅Co(SB) are new coenzyme B₁₂ model compounds. The properties of alkylcobalt complexes in solution and solid were studied. The influence factors on the stabilities of Co-Cbonds of the complexes were discussed.

Key words: Coenzyme B₁₂ model compounds, Co-C bond, Alkylcobalt complexes, Schiff base

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HAN De-Yan, CHEN Hui-Lan, WU Qin-Yuan, ZHOU Jin-Suo, TANG Wen-Xia . Studies on Coenzyme B₁₂ Model Compounds(Ⅵ)─The Influence of Axial and Equatorial Ligands on the Stabilities or Co-C Bonds of RCo(salen)L and RCo(SB)Complexes[J]. Chem. J. Chinese Universities, 1994, 15(5): 637.

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Studies on Coenzyme B₁₂ Model Compounds(Ⅵ)─The Influence of Axial and Equatorial Ligands on the Stabilities or Co-C Bonds of RCo(salen)L and RCo(SB)Complexes

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