Intramolecular Hydrogen Site Exchange in an HRu(SiHPh2) Moiety
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 35 (23) , 6772-6774
- https://doi.org/10.1021/ic960584z
Abstract
RuH(Ph)(CO)L2 (L = PtBu2Me) reacts with SiH2Ph2 to give first benzene and RuH(SiHPh2)(CO)L2, and then RuH3(SiHPh2)(CO)L2 and Ru(H)2(CO)L2, the trihydride being formed by a dehydrogenative silane coupling reaction when excess SiH2Ph2 is present. Variable-temperature spin saturation transfer experiments reveal exchange between Ha and Hb in RuHa(SiHbPh2)(CO)L2; this occurs both by an intramolecular mechanism and (when SiH2Ph2 is present) by a mechanism dependent on SiH2Ph2 concentration. Spin saturation transfer also reveals exchange between all three of the above complexes via addition/loss of SiH2Ph2 or H2.Keywords
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