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.