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曾经报导过RC_2R′取代Co_2(CO)_8中两个羰基的反应,生成的双核钴簇合物常被用来作为催化中间体模拟物或是作为催化剂。已经测定了一些双核钴簇合物的晶体结构。光谱研究表明,炔烃在配位后具有和激发态的烯烃相似的几何构型。也从反应性能角度讨论了R和R′基团对双核钴簇合物的成键性及稳定性的影响。本文报导了具有较大炔烃基团的标题簇合物的合成方法和晶体结构。
The reaction of RC_2R ’with two carbonyl groups in Co_2 (CO) _8 has been reported. The binuclear cobalt clusters are often used as catalytic intermediates or as catalysts. The crystal structures of some binuclear cobalt clusters have been determined. Spectroscopic studies show that alkynes have a similar geometry to that of the excited state after coordination. The effects of R and R ’groups on the bondability and stability of binuclear cobalt clusters were also discussed from the perspective of reactivity. This paper reports the synthesis and crystal structure of title clusters with large alkyne groups.