One-dimensional La(III) coordination polymer displaying multi-responsive luminescence activities towards Fe3+, acetone and benzothiozoles was written by Chen, Yuqian;Xian, Guoxuan;Yan, Hui;Wang, Yuhao;Li, Yunwu;Lu, Jing;Xu, Haijun;Tao, Jiayu;Wang, Suna. And the article was included in Journal of Solid State Chemistry in 2021.HPLC of Formula: 615-20-3 This article mentions the following:
Through reaction of La(NO3)3 with a flexible carboxylic acid ligand named 3,5-bis[(2-carboxyphenyl)oxy]benzoic acid (H3L) under solvothermal condition, the complex with the formula of [La(L)(DMF)2] (1) was obtained. One-dimensional chain of the complex was generated through the connection of binuclear units of La2(COO)4 across the flexible acid ligands. Luminescence results showed that different pollutants (Fe3+, acetone and benzothiophene organic compounds) could quench the luminescence of the blue emission of the complex in DMF with much low detection limit. Among several 2-substituted benzothiophene compounds, 2,2鈥?dithiobisbenzothiazole (DM) has a strongest binding constant of 10.8 x 104 M-1 and lowest detection limit of 0.332 渭M (0.110 ppm). All quenching effect was found within 15 s. The sensing mechanism was investigated through a series of experiments and theor. calculation Complex 1 could be employed as a multi-responsive chemosensor for detection of different pollutants with high sensitivity and fast response. In the experiment, the researchers used many compounds, for example, 2-Chlorobenzothiazole (cas: 615-20-3HPLC of Formula: 615-20-3).
2-Chlorobenzothiazole (cas: 615-20-3) belongs to thiazole derivatives. The thiazole ring is notable as a component of the vitamin thiamine (B1). 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.HPLC of Formula: 615-20-3
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica