Synthesis and structure of a pyridine-stabilized silanone molybdenum complex and its reactions with PMe and acetone.

Silanones (OSiR) are highly reactive species that readily convert to oligomeric siloxane (O-SiR). The coordination of silanones to transition metal fragments to afford silanone-coordinated complexes is a reliable silanone stabilization method. Herein, a pyridine-stabilized silanone molybdenum complex Cp*(OC)Mo{OSiMes(py)}(SiMe) (2b, Cp*: η-CMe, Mes: 2,4,6-MeCH, and py: pyridine) was synthesized by reacting the silyl(silylene) complex Cp*(OC)Mo(SiMes)(SiMe) (4b) with pyridine--oxide in pyridine.