Carbonyl substitution chemistry of some trimetallic transition metal cluster complexes with polyfunctional ligands
作者:Lindsay T. Byrne、Nicole S. Hondow、George A. Koutsantonis、Brian W. Skelton、A. Asgar Torabi、Allan H. White、S. Bruce Wild
DOI:10.1016/j.jorganchem.2008.01.040
日期:2008.5
of diastereoisomers. In the case of [Ru3(CO)12] the reaction with LH2 gave a poor yield of a tetranuclear butterfly cluster, [Ru4(CO)10(L)2], in which two of the ligands bridge opposite hinge wingtip bonds of the cluster. A related ligand, HSCH2CH2AsMe(C6H4CH2OMe), reacted with [RuCo2(CO)11] to give a low yield of the heterobimetallic Ru–Co adduct, [RuCo(CO)6(SCH2CH2AsMe(C6H4CH2OMe))], which appears
三金属簇[Ru 3(CO)10(dppm)],[Ru 3(CO)12 ]和[RuCo 2(CO)11 ]与许多多功能仲膦和叔a基配体反应生成羰基产物取代,如果是次膦,则激活PH。与未溶解的混合P / S供体1-苯基膦-2-硫代(乙烷),HSCH 2 CH 2 PHPh(LH 2)反应,在各种条件下得到两种产物,这些产物已通过光谱学和结晶学方法表征。这两个络合物[Ru 3(μ-dppm)(H)(CO)7(LH)]和[Ru3(μ-dppm)(H)(CO)8(LH)Ru 3(μ-dppm)(CO)9 ],显示了配体的多功能性,它在前者中螯合并桥接两个Ru 3单元。后者。分子中的立体异构中心产生了复杂的光谱数据,这与非对映异构体的存在是一致的。在[Ru 3(CO)12 ]的情况下,与LH 2的反应产生的四核蝴蝶簇[Ru 4(CO)10(L)2 ]的产率很低,其中两个配体在相对的铰链翼尖上桥连集群的联系。相关配体HSCH