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近期研究表明,M(CO)_6(M=Cr,Mo,W)与Me_3NO作用是缔合反应,Me_3NO中氧原子亲核进攻羰基碳,使其以CO_2的形式脱离金属原子,由此产生的活性中间体M(CO)_5与外来配体快速反应生成M(CO)_5L。有关金属原子簇羰基配合物的类似反应动力学研究尚未见报道。原子簇配合物可能表现出与单核配合物不同的反应性质,并且是有效的均相催化剂,进一步了解其与Me_3NO的反应性质颇有意义。本文报道在Me_3NO存在下M_3(CO)_(12)的CO取代反应(1)的研究结果(M=Fe,Ru,Os)。
Recent studies have shown that the interaction of M (CO) 6 (M = Cr, Mo, W) with Me_3NO is an associative reaction. The nuclei of Me_3NO nucleophilic attack carbonyl carbon, leaving it as a CO_2 form of metal atoms, the resulting The active intermediate M (CO) _5 rapidly reacts with exogenous ligand to form M (CO) _5L. Similar kinetic studies on carbonyl groups of metal clusters have not been reported. Clusters of complexes may exhibit different reactivity with mononuclear complexes and are effective homogeneous catalysts for further understanding of their reactivity with Me 3 NO 3. This paper reports the results of the CO substitution reaction of M_3 (CO) _ (12) (M = Fe, Ru, Os) in the presence of Me_3NO.