Highly fluorescent response of 4-(2,5-dimethylthiophen-3-yl)-2- hydroxyphenylbenzothiazole toward BF3·Et2O and Zn2+ was written by Liu, Yingfan;Li, Xiaochuan;Min, Kyeong Su;Son, Young-A.. And the article was included in Molecular Crystals and Liquid Crystals in 2018.Related Products of 638-02-8 The following contents are mentioned in the article:
In this contribution, the emission response of 4-(2,5-dimethylthiophen-3-yl)-2-(2-hydroxyphenyl)benzothiazole (THBT) was investigated in detail. The exptl. shows that Zn2+ could induce fluorescence increasing in THF. Especially, the quenched emission of THBT was significantly enhanced with 0.76 quantum yield. Due to the coordination of Zn2+, the excited state intramol. proto transfer (ESIPT) was inhibited and leads to emission quenching correspondingly. The strong emission could ascribe to the Zn-THBT complex. As well, the addition of BF3·Et2O also could form fluorine-boron complex and inhibit ESIPT effect. Addnl., the BF complex is also a strong blue emitter. Therefore, strong blue emission upon BF3·Et2O addition to THBT in dioxane was found. The possible coordinating mechanisms of THBT coordinate with Zn2+ and BF3·Et2O were given. This study involved multiple reactions and reactants, such as 2,5-Dimethylthiophene (cas: 638-02-8Related Products of 638-02-8).
2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene scaffolds are of great importance due to its increased presence in bioactive molecules. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.Related Products of 638-02-8
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem