Regioregular organometallic polymers possessing titanacyclopentadiene-2,5-diyl units in the main chain were converted into new p-conjugated polymers possessing various elements-blocks such as thiophene-1-oxide, selenophene, tellurophene, phosphole, stibole, and bismole. Subsequent chemical modifications of the polymers possessing 1,4-bismercapto-1,3-diene, tellurophene, and phosphole units were also carried out to give p-conjugated polymers that exhibit unique optoelectronic properties. Namely, the polymers obtained in the present studies exhibited both p-type and n-type semiconducting properties depending on the nature of the elements-blocks attached to the p-electronic systems. The narrow band gap materials have also been prepared by the facile molecular design of diynes. For example, a phosphole-containing polymer obtained from diethynyldithienogermole was subjected to the chemical modifications at its phosphorus atom to obtain polymers with band gap (Eg) less than 1.3 eV. Some of the polymers were found to be potentially applicable to photovoltaic cells.

Reactive organometallic polymers as precursors for elements-block-containing p-conjugated polymers

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.