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| Thermal treatment of the Si-H-functionalized cyclopentadienes (R’C5H4)SiHMeR [R’= H, R= Ph (1), PhCH2 (2); R’= t-Bu, R= Ph (3), PhCH2 (4)] with Ru3(CO)12 gave the Si-H bond activated cyclic complexes trans-[(RMeSi)(η5-R’C5H3)Ru(CO)2]2 [R’= H, R= Ph (7), PhCH2 (8); R’= t-Bu, R= Ph (10), PhCH2 (11)] with two Si-Ru bonds. A cyclopentenyl complex [(η2-C5H7)SiMe(CH2Ph)Ru(CO)3]2 (9) was also obtained from the reaction. But reactions of ligands (C5Me4H)SiHMeR [R= Ph (5), PhCH2 (6)] with Ru3(CO)12 only gave the cyclic complex [(PhMeSi)(η5-C5Me4)]Ru2(CO)6 (12) with one Si-Ru bond, and the desilylation product [(η5-C5Me4H)Ru(CO)2]2 (13). The molecular structures of 7, 9, 12, and 13 were determined by X-ray diffraction. |
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| Keywords:Functionalized cyclopentadiene, Si-H activation, Ruthenium carbonyl |
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