Excited-state intramolecular single and double proton transfer emission of 2,5-bis(benzoxazol-2-yl)Thiophene-3,4-diol (cas 14282-59-8)

Add time:07/18/2019    Source:sciencedirect.com

In this work, excited-state intramolecular single proton transfer emission (S-PTE) and double proton transfer emission (D-PTE) are presented by employing 2,5-bis(benzoxazol-2-yl)thiophene-3,4-diol (1) as a prototype. 1 has been strategically designed and synthesized in an aim to explore single proton transfer and double proton transfer in the excited state. In solution 1 exhibits the lowest lying S0 → S1 absorption at ∼395 nm. Upon excitation, two large Stokes shifted emission bands maximized at 475 nm and 550 nm are resolved, which are ascribed to the tautomer emission resulting from single proton transfer and double proton transfer isomers, respectively. It is found that solvents have greatly influenced on excited-state intramolecular proton transfer emission.

We also recommend Trading Suppliers and Manufacturers of Thiophene-3,4-diol (cas 14282-59-8). Pls Click Website Link as below: cas 14282-59-8 suppliers

Prev:Optical properties of indium-exchanged mordenite zeolite
Next:Theoretical study on excited state intramolecular proton transfer process of 2,5-bis(benzoxazol-2-yl) Thiophene-3,4-diol (cas 14282-59-8))