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Oxygen-atom transfer to a nucleophilic molybdenum complex. 2010

Mohammad S Askari, and Xavier Ottenwaelder
Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke st. West, Montreal, QC H4B 1R6, Canada.

The reactivity of the imido-Mo(IV) species [(eta(5)-Cp)(2)Mo(N(t)Bu)], 1, towards the iodine-based oxidant PhIO was investigated and yielded the micro-oxodimolybdenum(V) dimer [{(eta(5)-Cp)(eta(1)-Cp)Mo(N(t)Bu)}(2)O], 2. X-Ray crystallography and (1)H-NMR of 2 indicate slipping of one of the eta(5)-Cp ring on each Mo center to eta(1)-Cp as the result of the coordination of the oxygen atom. DFT investigation of the OAT reaction to complex 1 revealed a transient Mo(IV)-oxo species as the most likely intermediate.

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