Hydrosilylation of Diynes as a Route to Functional Polymers Delocalized Through Silicon

Abstract

Polycarbosilanes exhibit desirable physiochemical properties such as high thermal stability, elastomeric behavior, diverse functional group tolerance, electronic delocalization, and ease of synthesis. New ceramic precursors, fire‐retardant materials, and flexible conducting polymers have been created using polycarbosilanes. Catalytic hydrosilylation provides a convenient synthetic route to these materials. With its tolerance of many functional groups, catalytic hydrosilylation offers one‐step syntheses of both aliphatic and olefinic polymers and dendrimers whose electronic properties can be tuned selectively.Copolymerization of conjugated diynes with compounds that contain the silole chromophore offers a route to new luminescent materials that have been applied to the detection of explosives and may be promising organic light‐emitting diode materials. An important feature of the silole materials is the Lewis acidity at silicon, which offers a function not often present in organic polymers.magnified image

Nickel N-heterocyclic carbene complexes and their utility in homogeneous catalysis

“…Though the hydrosilylation of internal alkynes is comparatively less explored than that of terminal alkynes, it is of considerable importance to organic synthesis as it produces silylated alkenes in a stereoselective fashion [282] (Scheme 34). …”

Synthesis and electrochemical, optical, and thermal properties of polycarbosilanes with silylene–vinylene–phenylene–vinylene backbones and triphenylamine or carbazole unit-containing side chains

“…1 H and 29 Si NMR spectra were measured by a Bruker ARX-300 or a Jeol JNM-LA600 instrument using benzene-d 6 solvent. IR spectra were recorded on a Perkin Elmer Spectrum One spectrometer.…”

Construction of Functional Polymers from Acetylenic Triple‐Bond Building Blocks

“…[2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] The rapid progresses in this area, especially the recent booming in the click chemistry, are quickly changing the map and widening the territory. We therefore think it is high time to organize this Special Article Series called ''New Frontiers in Functional Polymers''.…”