The Different Recognition Mechanism of Carbazole Derivatives for Biological Important Anion: Theory and Experiment

Abstract

Two fluorescent anion sensors bearing phenol, carbazole-NH and -NO 2 group were designed and synthesized. They both exhibited highly binding ability for , respectively. Theoretical investigation indicated it was the highest HOMO to induce the red-shift phenomena of two sensors.

Imine-functionalized thioether Zn(ii) turn-on fluorescent sensor and its selective sequential logic operations with H2PO4−, DFT computation and live cell imaging

“…The imine length, C(8)] N(1), is 1.287(3) A, which is comparable to literature reports. [36][37][38][39] The bond lengths in the coordination zone are Zn(1)-N(1), 2.089(2); Zn(1)-O(1), 1.9628 (16); and Zn(1)-S(1), 2.6800 (7) A.…”

“…Zn-N, 156.85 ; etc., in ESI, Tables S2 and S3 †) are comparable with those of similar structures in literature. [36][37][38][39] The binding of Zn 2+ enhances the bond lengths of C]N and C-O, which may be due to the electron driing of metal ions from L 2À . This is also supported by the lowering of n(C]N) in [ZnL] compared to H 2 L.…”

A Bodipy-Phenol-Based Sensor for Selectively Recognizing Three Basic Anions

“…In particular, phenol-based anion chemosensors have garnered considerable attention in the last decades, because phenol OH can act as an anion receptor through hydrogen bonding or deprotonation [7][8][9][10][11][12][13] . These chemosensors are generally chromogenic and/or fluorescent probes, which efficiently change their photophysical properties in the presence of anions.…”