【摘要】 <正> 和许多金属簇合物一样,羰基钴簇合物也可作为有机反应的催化剂。Kruerke等曾报道[（CH₃）₃CC₂H]CO₂（CO）₆可以催化（CH₃）₃CC₂H三聚成苯的衍生物。以后,虽然又有文献报道了类似的反应,但到目前为止,对这类反应的研究仅限于对生成的苯的衍生物的表征。反应产率一般不高于20％,对催化过程也没有作过讨论。更多还原

【Abstract】 Catalytic reaction of trimerization of PhC2H to 1,2,4-triphenylbenzene with four carbonyl cobalt clusters (PhC2H)Co2 (CO)6(Ⅰ), (PhC2H)Co2-(CO)6PPh3(Ⅱ),,(PhC2H)Co2(CO)4(PPh3)2 (Ⅲ),and CH3CCo3(CO)9(Ⅳ) has been studied separately. The larger charge density and the less steric hindrance in Co2C2 were favorable to the catalysis of clusters for the trimerization.For the four kinds of catalysts, the order of the catalysis of trimerization of phenylacetylene to 1,2,4-triphenylbenzene is:Ⅱ>Ⅲ>Ⅰ>Ⅳ.The catalytic process was also discussed.更多还原