Parallel synthesis of donor-acceptor π-conjugated polymers by post-element transformation of organotitanium polymer.

ABSTRACT: The donor-acceptor type π-conjugated polymers having heterole units were prepared by the reaction of a regioregular organometallic polymer having both reactive titanacyclopentadiene and electron-donor thiophene-2,5-diyl units in the main chain with electrophiles such as diphenyltin dichloride, dichlorophenylphosphine, and diiodophenylarsine. For example, a polymer having electron-accepting phosphole unit was obtained in 54% yield whose number-average molecular weight (M_n) and molecular weight distribution (M_w/M_n) were estimated as 3,000 and 1.9, respectively. The obtained polymer exhibits a high highest occupied molecular orbital (HOMO) and low lowest unoccupied molecular orbital (LUMO) energy levels (-5.13 eV and -3.25 eV, respectively

SUBMITTER: Matsumura Y 

PROVIDER: S-EPMC10327520 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature