Chalcogen-capped ruthenium carbonyl clusters derived from diphosphazane mono- and dichalcogenides of the type X2P(E)N(R)PX2 and X2P(E)N(R)P(E)X2 (E=S or Se)
作者:Thengarai S. Venkatakrishnan、Setharampattu S. Krishnamurthy、Munirathinam Nethaji
DOI:10.1016/j.jorganchem.2005.05.041
日期:2005.9
Reactions of Ru3(CO)12 with diphosphazane monoselenides Ph2PN(R)P(Se)Ph2 [R = (S)-∗CHMePh (L4), R = CHMe2 (L5)] yield mainly the selenium bicapped tetraruthenium clusters [Ru4(μ4-Se)2(μ-CO)(CO)8μ-P,P-Ph2PN(R)PPh2}] (1, 3). The selenium monocapped triruthenium cluster [Ru3(μ3-Se)(μsb-CO)(CO)7κ2-P,P-Ph2PN((S)-∗CHMePh)PPh2}] (2) is obtained only in the case of L4. An analogous reaction of the diphosphazane