辅酶B12模型化合物的研究——Ⅰ.双水杨醛缩乙二亚胺烷基钴(Ⅲ)配合物Co-C键的性质 |
STUDY ON COENZYME B12 MODEL COMPOUNDS I.THE PROPERTIES OF COBALT-CARBON BOND OF ALKYL COBALT(Ⅱ)COMPLEXES OF BIS(SALICYLALDEHYDE)ETHYLENEDHMINE |
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摘要: 本工作合成、表征了一系列辅酶B12模型化合物RCo(Salen)L,其中R=CH3,C2H5,n和i-C3H7,n和i-C4H9,研究了上述配合物固体和溶液的Co-C键稳定性,结果表明:固体配合物Co-C键断裂的温度受烷基位阻影响,它们具有以下顺序:CH3>C2H5>n-C3H7≈n-C4H9≈i-C4H9≈i-C3H7.此外还确定了影响配合物Co-C键在溶液中稳定性的因素. |
关键词: 烷基钴配合物 Co-C键 双水杨醛缩乙二亚胺 辅酶B12 |
基金项目: |
Abstract: A series of RCo(salen)L(R=CH3, C2H5, n and i-C3H7, n and i-C4H9)were synthesized and characterized. The stabilities of Co-C bond of title complexes in solid state and in solution was studied. The obtained results showed that the cleavage temperature of Co-C bond of complexes in solid state was effected by the steric bulk of alkyl groups in the following order: CH3>C2H5>n-C3H7≈n-C4H9≈i-C4H9≈i-C3H7. The factors that influenced the stabilities of Co-C bond of complexes in solution were ascertained. |
Keywords: alkyl cobalt complex cobalt-carbon bond bis(salicylaldehyde)ethylenediimine coenzyme B12 |
投稿时间:1989-03-17 |
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陈慧兰,陈冠菁,李玉梅,唐雯霞,戴庆平.辅酶B12模型化合物的研究——Ⅰ.双水杨醛缩乙二亚胺烷基钴(Ⅲ)配合物Co-C键的性质[J].无机化学学报,1991,7(4):373-378. |
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