Synthesis of organosilicon polymers containing donor-acceptor type 锜?conjugated units and their application to dye-sensitized solar cells was written by Ohshita, Joji;Kangai, Sinji;Yoshida, Hiroto;Kunai, Atsutaka;Kajiwara, Shotaro;Ooyama, Yousuke;Harima, Yutaka. And the article was included in Journal of Organometallic Chemistry in 2007.Reference of 148231-12-3 This article mentions the following:
Novel organosilicon polymers with donor-acceptor type 锜?conjugated units in the backbone were prepared by Stille coupling reaction of bis(tributylstannylthienyl)silanes with diiodoquinoxaline, benzothiadiazole, and benzoselenadiazole. De-halogenative copolymerization of di(bromothienyl)silanes and dibromoquinoxaline which gave the corresponding random copolymer was also studied. Applications of these polymers to dye-sensitized solar cells (DSSCs) were examined and the polymer containing benzoselenadiazole units as the acceptor had the best sensitizer performance. In the experiment, the researchers used many compounds, for example, 5,8-Dibromoquinoxaline (cas: 148231-12-3Reference of 148231-12-3).
5,8-Dibromoquinoxaline (cas: 148231-12-3) belongs to pyrazine derivatives. Pyrazine is a symmetrical molecule with point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. Substituted pyrazines have been found as subunits of multiple synthetically constructed therapeutic agents, as well as several natural products.Reference of 148231-12-3