ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(47), P. 65340 - 65347
Published: Nov. 13, 2024
Porous chiral materials accompanied by electrochemiluminescence (ECL) activity are rarely reported for enantioselective discrimination because of the big challenges to integrate stereogenic center and ECL-active unit in backbone. In present study, ionic covalent organic frameworks (iCCOFs) consisting pyridinium as species were prepared a facile strategy. We amazed that such iCCOFs could display strong cathodic ECL responses. Meanwhile, as-prepared performed quenching toward amino acid enantiomers, attributed enhanced photoinduced electron transfer process derived from formed complex between acids via an electrostatic attraction effect. The iCCOF with (S)-configuration was prone interact l-amino acids, producing lower intensity. maximum intensity ratio d- l-enantiomers 33.0. Finally, enantiomeric compositions measured presented good linear relation obtained intensity, which fit determination samples unknown purity. brief, results convince us this study advances new generation displays great potential sensing.
Language: Английский