The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Synthesis, Properties, and Solar Cell Performance of Poly(4-(p-alkoxystyryl)thiazole)s》. Authors are Jaeger, Jakob; Schraff, Sandra; Pammer, Frank.The article about the compound:5-Bromo-4-methyl-thiazol-2-ylamine hydrobromidecas:79247-77-1,SMILESS:NC1=NC(C)=C(Br)S1.[H]Br).Category: amides-buliding-blocks. Through the article, more information about this compound (cas:79247-77-1) is conveyed.
Polythiazoles (PvTzs) featuring conjugated styryl sidechains equipped with different solubilizing p-alkoxy-groups (-OR, R = n-octyl, n-dodecyl, 2-ethylhexyl, 2-hexyldecyl) is prepared by Negishi-coupling polycondensation. Soluble material with number-average mol. weights of up to Mn = 8.5 kDa (polydispersity (PDI) = 1.3, d.p. (DPn) ≈ 20) is obtained, with a head-to-tail content of the PvTzs of ≈77%, as estimated from comparison with reference polymers. The polymers exhibit optical absorption properties similar to their polythiophene analogs, while their electrochem. characterization shows a significant stabilization of their frontier orbital levels. Fluorescence measurements indicate that upon excitation of the electron rich alkoxystyryl side-chains charge transfer onto the more electron deficient polythiazole backbone occurs. This finding is corroborated by d. functional theory (DFT) calculations on oligomeric model systems, which also consistently reproduce the optical properties observed for the polymers. The potential of these materials for applications in organic electronics can be demonstrated by their use as donor materials in organic photovoltaic cells, which exhibit higher open circuit voltages (VOC, up to 0.86 V) than P3HT- or analogous polythiophene-based cells (VOC = 0.5-0.6 V).
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Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics