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Organosilicon polymers having a regular alternate arrangement of -Hex 2 Si-π-Hex 2 Si-π’-(π, π’ = π-electron system) were prepared by successive treatment of Hex 2 SiFCl with dilithiated π- conjugated compounds, Li-π-Li and Li-π’ -Li (π = diethynylanthracene, diethynylpyrene, diethynylcarbazole; π’ = bithiophenediyl, terthiophenediyl). UV-vis absorption spectra and cyclic voltammograms of the resulting polymers indicated that the two π-electron systems, π and π’, are electronically isolated, while the emission spectra indicated that energy transfer between the π-electron systems occurred in the excited states.

Selective Substitution of Hex 2 SiFCl for the Preparation of Polymers with Two Different Alternate π-Electron Systems Linked by Hex 2 Si Units