Deciphering a volcano-shaped relationship between radical stability and reticular electrochemiluminescence.

ABSTRACT: Electrochemiluminescence (ECL) is a light-emitting process in which the stability of electrochemically generated radicals has a crucial impact on the efficiency and durability of excited state generation. Therefore, deciphering a relationship between radical stability and ECL performance is highly appealing. In this work, three sp² carbon-conjugated covalent organic framework (COF) reticular nanoemitters compositing of same pyrene luminophores but different acrylonitrile linkers are designed with progressive electron affinities, named as CN-COF-1, 2, and 3. By precisely modulating the electron affinity of CN-COFs, a volcano relationship between ECL and radical stability is discovered with 78 folds enhancement in ECL intensity. Density functional theoretical calculations indicate

SUBMITTER: Xu H 

PROVIDER: S-EPMC11850594 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature