The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Bromo-4-methyl-thiazol-2-ylamine hydrobromide( cas:79247-77-1 ) is researched.SDS of cas: 79247-77-1.Jaeger, Jakob; Schraff, Sandra; Pammer, Frank published the article 《Synthesis, Properties, and Solar Cell Performance of Poly(4-(p-alkoxystyryl)thiazole)s》 about this compound( cas:79247-77-1 ) in Macromolecular Chemistry and Physics. Keywords: solar cell polyalkoxystyrylthiazole. Let’s learn more about this compound (cas:79247-77-1).
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