Photochemistry of polysilanes

The photochemistry of polysilane derivatives may occur also via the triplet state 13, 30), on the basis of the observation of a weak-structured phosphorescence characteristic of a localized excited state for a number of polysilane derivatives. In principle, the halogenated additives could promote intersystem crossing via an intermolecular heavy-atom effect (39). Again, however, why the two structurally similar polysilanes should respond so differently to the presence of the additive is unclear. 

Silicon.—Organic aspects of the photochemistry of silicon-containing compounds are discussed in Part III, Chapter 6, Section 3. A review of the photochemistry of polysilanes has been published.483... 

---