627871-41-4Relevant academic research and scientific papers
Facile Synthesis and Structures of η6-Arene Bis(silyl) Complexes of Ruthenium(II): (η6-arene)Ru(PPh 3)(SiX3)2
Burgio, James,Yardy, Nicholas M.,Petersen, Jeffrey L.,Lemke, Frederick R.
, p. 4928 - 4932 (2008/10/08)
The reaction of RuCl2(PPh3)3 with HSiX3 in benzene produced (η6-benzene)Ru(PPh 3)(SiX3)2 (SiX3 = SiCl3 (1), SiMeCl2 (2)) as white to light yellow solids in high yields (>80%). A mixture of (η?6-benzene)Ru(PPh 3)(SiMe2Cl)2 (3), (η 6-benzene)Ru(PPh3)(SiMe2Cl)(SiMeCl 2) (4), and 2, due to silicon substituent redistribution, was obtained from the reaction of RuCl2(PPh3)3 with HSiMe2Cl in benzene. (η6-benzene)Ru(PPh 3)(SiMe3)2 (5) was prepared by the methylation of 1, 2, or the 3/4 mixture with AlMe3. The related complexes (η6-arene)Ru(PPh3)-(SiMeCl2)2 (arene = toluene (6), o-xylene (7), m-xylene (8), p-xylene (9), mesitylene (10), anisole (11)) were obtained from the reaction of RuCl2(PPh 3)3 with HSiMeCl2 in the corresponding arene solvent at elevated temperature. Complexes 1, 2, and 5 were structurally characterized by single-crystal X-ray diffraction and exhibit a characteristic three-legged piano-stool geometry. The Ru-Si distances, in these complexes, ranged from 2.322 to 2.438 A; the Ru-Si distance increased as the number of methyl groups on silicon increased.
