Structure property relationship of linear and angular pyrazine-based structural isomers with terminal D-A groups and evaluation of their photophysical properties

Add time:09/08/2019    Source:sciencedirect.com

A series of pyrazine-based linear and angular shaped push-pull chromophores were synthesized by Sonogashira reaction and were further investigated by X-ray analysis. The photophysical properties were comprehensively studied both experimentally and through quantum chemical methods. The drastic influence of the electron-donor and acceptor on the absorption and emission spectra of the linear and angular scaffolds was established. Quantum chemical computations provided a reliable theoretical rationalization of the observed spectral features. These results suggest that extending the conjugation of a pyrazine acceptor in a linear direction can dramatically improve the intramolecular charge transfer interactions.

We also recommend Trading Suppliers and Manufacturers of 2,5-Dimethyl pyrazine (cas 123-32-0). Pls Click Website Link as below: cas 123-32-0 suppliers

Prev:Pheromone synthesis. Part 261: Synthesis of four pyrazines produced by females of the Korean apricot wasp, Eurytoma maslovskii☆
Next:Impact of different enzymatic hydrolysates of whey protein on the formation of pyrazines in Maillard model systems)