In 2019,Dyes and Pigments included an article by Colom, E.; Andres-Castan, J. M.; Barrios, D.; Duerto, I.; Franco, S.; Garin, J.; Orduna, J.; Villacampa, B.; Blesa, M. J.. HPLC of Formula: 14660-52-7. The article was titled 《Modification of the electronic properties of the π-spacer of chromophores linked to calix[4]arene platform for DSSCs applications》. The information in the text is summarized as follows:
We have developed two novel dyes based on p-tert-butyl-calix[4]arene in order to evaluate their behavior as sensitizer in photovoltaic devices. These dyes consist in a difunctionalized calix[4]arene with triphenylamine (TPA)-donor, a heteroaromatic π-conjugated spacer, thiophene and benzothiadiazole-Ph ring, resp. and cyanoacetic acid as acceptor group. The effect of the π-spacer has been studied by UV-vis spectroscopy and Differential Pulse Voltammetry and the models compounds have been theor. investigated. The dye bearing phenylbenzothiadiazole results in a bathochromic shifted absorption and an adequate efficiency to transfer charge from D to A. The considerable increase of the photocurrent d. results in a better efficiency of the devices prepared with these novel dyes with respect to the p-tert-butyl-calix[4]arene derivatives bearing TPA dye. In particular, p-tert-butyl-calix[4]arene derivative based on phenylbenzothiadiazole has reached an efficiency value of 5.84% which means an increase of 33% of the efficiency over those calix[4]arene derivatives with TPA dye. In the experiment, the researchers used Ethyl 5-bromovalerate(cas: 14660-52-7HPLC of Formula: 14660-52-7)
Ethyl 5-bromovalerate(cas: 14660-52-7) belongs to bromides. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact.HPLC of Formula: 14660-52-7
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary