Qin, Lin et al. published their research in CCS Chemistry in 2022 | CAS: 38215-36-0

3-(Benzo[d]thiazol-2-yl)-7-(diethylamino)-2H-chromen-2-one (cas: 38215-36-0) belongs to thiazole derivatives. Thiazole rings are planar and aromatic. Thiazoles are characterized by larger pi-electron delocalization than the corresponding oxazoles and have therefore greater aromaticity. Electrophilic attack at nitrogen depends on the presence of electron density at nitrogen as well as the position and nature of substituent linked to the thiazole ring.Formula: C20H18N2O2S

Efficient photogeneration of hydrogen boosted by long-lived dye-modified Ir(III) photosensitizers and polyoxometalate catalyst was written by Qin, Lin;Zhao, Chongyang;Yao, Liao-Yuan;Dou, Hongbin;Zhang, Mo;Xie, Jing;Weng, Tsu-Chien;Lv, Hongjin;Yang, Guo-Yu.. And the article was included in CCS Chemistry in 2022.Formula: C20H18N2O2S The following contents are mentioned in the article:

Developing efficient catalysts and photosensitizers is crucial for the construction of effective photocatalytic H2-evolving systems. Here, we report the facile preparation of Coumarin-modified Ir(III) complexes (PS-2 and PS-3) and their utilization as chromophores to drive favorable photocatalytic H2 evolution using Ni-substituted polyoxometalate (Ni3PW10) catalyst and triethanolamine (TEOA) as an electron donor. Compared with the com. available unmodified Ir(III) complex (PS-1), both PS-2 and PS-3 displayed intensive absorption in the range of 400-550 nm with εmax of 110,620 and 91,430 M-1 cm-1, resp. Varying the substitutes on the bipyridine ligand affected their physicochem. properties and the corresponding photocatalytic activity dramatically. Under photocatalytic conditions, the quantity of H2 mols. generated by PS-2- and PS-3-containing systems were 13.1 and 2.1 times, resp., that of the PS-1-containing system. When PS-2 was used as a photosensitizer, the highest turnover number (TON) of 19,739 was obtained vs. Ni3PW10 catalyst. Various spectroscopic and computational studies have revealed that factors such as strong and broad visible-light-absorbing ability, long-lived triplet state, suitable redox potential, opposed by using polyoxometalate (POM) catalyst, and large HOMO (HOMO)-LUMO (LUMO) gap of PS-2 attributed to drastically enhanced photocatalytic activity. This study involved multiple reactions and reactants, such as 3-(Benzo[d]thiazol-2-yl)-7-(diethylamino)-2H-chromen-2-one (cas: 38215-36-0Formula: C20H18N2O2S).

3-(Benzo[d]thiazol-2-yl)-7-(diethylamino)-2H-chromen-2-one (cas: 38215-36-0) belongs to thiazole derivatives. Thiazole rings are planar and aromatic. Thiazoles are characterized by larger pi-electron delocalization than the corresponding oxazoles and have therefore greater aromaticity. Electrophilic attack at nitrogen depends on the presence of electron density at nitrogen as well as the position and nature of substituent linked to the thiazole ring.Formula: C20H18N2O2S

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica