Insights into ESIPT-induced multicolor fluorescence emission in 2-(2'-hydroxy-5'-bromo)phenylbenzimidazole: a spectroscopic and TDDFT study.

ABSTRACT: Although multicolor luminescent materials are widely used in information encryption and decryption based on the excited-state intramolecular proton transfer (ESIPT) reaction, there remains a significant gap in the mechanistic understanding of how solvent and pH conditions influence the ESIPT process. Owing to their ability to avoid self-absorption as well as provide large Stokes' shift and strong emission properties, ESIPT-generated molecules (ESIPT gens) have recently emerged as highly potential fluorophores. Herein, the ESIPT mechanism of bromine-based (2'-hydroxy-5'-bromo)phenylbenzimidazole (HBI-pBr) was investigated in solvents using spectroscopic measurements and time-dependent density functional theory (TD-DFT) calculations. The results indicated that multi-color fluorescence emissi

SUBMITTER: Wang Y 

PROVIDER: S-EPMC11651046 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature