Peng, Kai published the artcileNovel synthesis of poly(3,4-dinitro-thiophen-2-yl arylamine) derivatives via facile C-Br/N-H bulk polycondensation and its application of thermalsensor, Product Details of C4Br2N2O4S, the publication is Polymer (2020), 122550, database is CAplus.
C-Br/N-H bulk polycondensation is firstly proposed and corresponding poly(3,4-dinitro-thiophen-2-yl arylamine)s derivatives have been successfully obtained with quant. yield. Typical crystal anal. reveals that its effective reaction points distance (RPD, distance between Br and H atom) is 5.083 Å, which is 66.7% longer than the sum of van der Waals radius (rw) of bromine and hydrogen atoms (3.05 Å). Carbazole-based monomer was explored as a thermalsensor with excellent relative sensitivity (Sa) of 0.45% K-1.
Polymer 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 C4Br2N2O4S, Product Details of C4Br2N2O4S.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary