Shen, Xingxing published the artcileSynthesis of thienoselenadiazole-containing conjugated copolymers and their application in polymer solar cells, SDS of cas: 52431-30-8, the publication is Polymer Journal (Tokyo, Japan) (2012), 44(9), 978-981, database is CAplus.
We have successfully synthesized the thienoselenadiazole unit through the condensation reaction between thiophene diamine and SeO2 and applied the thienoselenadiazole unit for D-A-conjugated polymers. The thienoselenadiazole-based polymers exhibit good solubility in common organic solvents, good thermal stability, and deep HOMO levels. The solar cells based on thienoselenadiazole-containing polymers gave high open-circuit voltage. Further improving of the light-absorption properties of the thienoselenadiazole-containing polymers to achieve high short-circuit c.d. and high power conversion efficiency is currently underway.
Polymer Journal (Tokyo, Japan) published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C9H7NO2, SDS of cas: 52431-30-8.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary