利用碳氢键活化合成钴的钳式配合物及其性质研究(英文)

Synthesis and Reactivity of Cobalt Pincer Complexes Formed by Carbon-Hydrogen Bond Activation

利用CoMe（PMe3）4或者CoMe3（PMe3）3与[PCP]-钳式配体,[Ph2P（ortho-C6H4）]2CH2（1）,室温下反应,在实现碳氢键活化的同时,合成了钴的钳式配合物[PCP]Co（I）（PMe3）（2）.配合物2与卤代烃C6Cl6,EtBr,n-BuBr以及CH3I反应,分别生成了单电子氧化加成产物3~5,[PCP]Co（II）X（PMe3）[X=Cl（3）,Br（4）,I（5）].X射线衍射分析测定了配合物2~6的结构.

By treating diphosphinito [PCP]-pincer ligand,（Ph2P（ortho-C6H4））2CH2（1） with Co Me（PMe3）4 or Co Me3（PMe3）3the same Csp3—H bond activation product [PCP]Co（I）（PMe3）（2） was obtained at room temperature. Treatment of 2 with C6Cl6, Et Br or n-Bu Br and CH3 I gave rise to the single electron oxidation addition products [PCP]Co（II）X（PMe3） [X=Cl（3）, Br（4） and I（5）]. The molecular structures of 2~6 were confirmed by X-ray diffraction analysis.