Heterolytic Si-H Bond Cleavage at a Molybdenum-Oxido-Based Lewis Pair.

ABSTRACT: The reaction of a molybdenum(VI) oxido imido complex with the strong Lewis acid B(C₆ F₅ )₃ gave access to the Lewis adduct [Mo{OB(C₆ F₅ )₃ }(NtBu)L₂ ] featuring reversible B-O bonding in solution. The resulting frustrated Lewis pair (FLP)-like reactivity is reflected by the compound's ability to heterolytically cleave Si-H bonds, leading to a clean formation of the novel cationic Mo^VI species 3 a (R=Et) and 3 b (R=Ph) of the general formula [Mo(OSiR₃ )(NtBu)L₂ ][HB(C₆ F₅ )₃ ]. These compounds possess properties highly unusual for molybdenum d⁰ species such as an intensive, charge-transfer-based color as well as a reversible redox couple a

SUBMITTER: Zwettler N 

PROVIDER: S-EPMC6001527 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature