Dynamics of Silylenes in Polysilylenes with Structural Defects by Excimer Laser Flash Photolysis.

The dynamics of silylene extrusion reaction was observed in polysilylene with Si branchings by using KrF excimer laser flash photolysis technique. The initial yield of silyl radicals was seen to be dependent on the backbone structure of polysilylenes, whereas the yield of silylenes was almost proportional to the number of the linear Si units in their backbones.