Mixed main group transition metal clusters: Reactions of [Ru 3 (CO) 10 (μ-dppm)] with Ph 3 SnH
作者： Md. Mehedi M. Khan , Shishir Ghosh , Graeme Hogarth , Derek A. Tocher , Michael G. Richmond
DOI: 10.1016/J.JORGANCHEM.2017.03.052
关键词:
摘要: Abstract Novel dppm-ligated ruthenium-tin clusters have been prepared from the reaction of [Ru3(CO)10(μ-dppm)] with Ph3SnH. At room temperature and in presence Me3NO, [Ru3(CO)9(SnPh3) (μ-dppm) (μ-H)] (1) is produced formal loss CO Sn-H bond oxidative-addition. Treatment 1 a further two equivalents Ph3SnH (in Me3NO) gave [Ru3(CO)7(SnPh3)2(μ-SnPh2)(μ-dppm)(μ-H)(μ3-H)] (2) which results both Sn–H Sn–C scission contains different hydride environments (μ μ3) μ-SnPh2 moiety. Cluster 2 has 48 CVE (cluster valence electron) three ruthenium-ruthenium bonds; those are very long fall at extreme end distances attributed to bonds. Thermolysis 2 at 66 °C liberates benzene give [Ru3(CO)8(SnPh3)(μ-SnPh2)(μ3-SnPh2)(μ-dppm)(μ-H)] (3). DFT calculations confirm that bridges one Ru-μ-SnPh2 bonds 3. The solid-state structures 3 determined by X-ray crystallography, bonding ligand distribution investigated studies. geometry-optimized consistent structures.
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