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Title: Synthesis, structure, and C-H bond activation chemistry of ([eta][sup 6]-arene)Ru(H)[sub 2](SiMe[sub 3])[sub 2] complexes

Journal Article · · Organometallics; (United States)
DOI:https://doi.org/10.1021/om00019a005· OSTI ID:7015540
; ;  [1]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States)

The ([eta][sup 6]-arene)Ru(H)[sub 2](SiMe[sub 3])[sub 2] arene = C[sub 6]-Me[sub 6] (1a), p-cymene (1b), C[sub 6]H[sub 6] (1c) complexes have been prepared and characterized. The complexes activate both aromatic and aliphatic C-H bonds and catalyze H/D exchange in alkylsilanes upon thermolysis in benzene-d[sub 6]. A mechanism based on oxidative-addition/reductive-elimination steps which utilizes a Ru(II)-Ru(IV) cycle is proposed to account for the C-H bond activation and H/D exchange reactions. It is further proposed that H/D exchange into sites adjacent to silicon in alkylsilanes is due to the intermediacy of an [eta][sup 2]-silene complex generated by [beta]-hydrogen elimination from the silyl group. 19 refs., 1 fig.

OSTI ID:
7015540
Journal Information:
Organometallics; (United States), Vol. 13:7; ISSN 0276-7333
Country of Publication:
United States
Language:
English