Organic semiconducting materials have been a subject of intensive studies recently, fueled by both academic interest and a series
of potential technological applications. Their molecular structure characterized by extended π-electron systems can be easily tuned by
chemical substitution. The most promising organic semiconducting materials combine a number of critical properties, including processiblity,
stability, conjugation length, band gap energy, and charge mobility.
Heterocycle rings-containing polymers comprise a huge class of organic materials that have received considerable interest due to their
significant electrical, electrochemical and optical properties. In this review, the recent advances on the use of cross-coupling reactions for
the synthesis of heterocyclic, conjugated monomers and polymers for the potential optoelectronic applications are summarized. Some
correlations between semiconducting parameters and molecular structure of the organic compounds are discussed. This review focuses on
synthesis, polymerization, structures, properties and application of branched symmetric arylenes, which are of interest because of their
viewpoint as material for environmental diagnostic devices. Synthesis of the symmetric heteroarylenes were provided due to Suzuki and
Stille coupling. Polymerization was mostly processed as two steps two-electron oxidation of molecules. In single-electron oxidation, stable
radical cation is formed with spin located on main unit of structure. The electrochemical properties of polymer are dependent on film
thickness deposited on electrode. Analysis of polymer behaviour and results of spectrochemical measurements of obtained derivatives
point on mixed type of electroconductivity of material.
Keywords: Cross-coupling, Heterocycles, Palladium, Stille reaction, Suzuki coupling, Cyclic voltammetry, Electropolymerization, Polymerization, Fluorescence
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