Synthesis and crystal structure of [K{O(Ph2SiO)2SiPh2OH}] 2·C6H6; the first structurally characterised example of a monometallated derivative of an α,ω-siloxane diol. Solution chemistry in relation to KOH-promoted ring-opening polymerisation of (Ph2SiO)3

Abstract

The first structurally characterised example of a monometallated derivative of an α,ω-siloxane diol compound [K{O(Ph ₂ SiO) ₂ SiPh ₂ OH}] ₂ ·C ₆ H ₆ has been isolated {from [(Ph ₂ SiOH) ₂ O] and KOBu ^t , 1∶1 molar ratio} and structurally characterised by X-ray crystallography, proton NMR, IR and variable-temperature ²⁹ Si NMR and its chemistry in relation to KOH-promoted ring-opening polymerisation of (Ph ₂ SiO) ₃ is discussed.