CNDO/S method interpretation of ultraviolet spectra of phenylthiazoles was written by Bouscasse, L.;Lebreton, M.;Aune, J. P.. And the article was included in Spectroscopy Letters in 1994.Application of 1826-13-7 This article mentions the following:
The UV spectra of three phenylthiazoles are reported. These exptl. results are interpreted using CNDO/S method (CNDO for Spectroscopy). Calculations show that the observed transitions, except two, are pseudo π → π* type transitions. In the experiment, the researchers used many compounds, for example, 5-Phenylthiazole (cas: 1826-13-7Application of 1826-13-7).
5-Phenylthiazole (cas: 1826-13-7) belongs to thiazole derivatives. Thiazole is a five-membered, unsaturated, planar, π-excessive heteroaromatic containing one sulfur atom and one pyridine-type nitrogen atom at position 3 of the cyclic ring system. Thiazole sulfonation occurs only under forcing conditions: the action of oleum at 250 °C for 3 hours in the presence of mercury(II) sulfate leads to 65% formation of 5-thiazole sulfonic acid.Application of 1826-13-7
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica