title: Thieno[3,2-b]pyrrolo donor fused with benzothiadiazolo, benzoselenadiazolo and quinoxalino acceptors: synthesis, characterization, and molecular properties.
abstract: Nitrogen-bridged donor-acceptor multifused dithienopyrrolobenzothiadiazole (DTPBT) and dibenzothiadiazolopyrrolothiophene (DBTPT) were successfully synthesized by intramolecular Cadogan annulation. The electron-deficient benzothiadiazole unit in DTPBT can be converted to benzoselenadiazole and quinoxaline moieties through reduction/cyclization to generate dithienopyrrolobenzoselenadiazole (DTPBSe) and dithienopyrroloquinoxaline (DTPQX), respectively. The nitrogen atoms function as the bridges for covalent planarization to induce intermolecular interaction and intramolecular charge transfer.
authors.affiliation: Department of Applied Chemistry, National Chiao Tung University 1001 Ta Hsueh Road, Hsin-Chu, 30010 Taiwan. yjcheng@mail.nctu.edu.tw
authors.forename: Yen-Ju
authors.initials: YJ
authors.lastname: Cheng
authors.forename: Chiu-Hsiang
authors.initials: CH
authors.lastname: Chen
authors.forename: Yu-Ju
authors.initials: YJ
authors.lastname: Ho
authors.forename: Shu-Wei
authors.initials: SW
authors.lastname: Chang
authors.forename: Henryk A
authors.initials: HA
authors.lastname: Witek
authors.forename: Chain-Shu
authors.initials: CS
authors.lastname: Hsu