In:
Journal of the Chinese Chemical Society, Wiley, Vol. 68, No. 12 ( 2021-12), p. 2368-2377
Abstract:
A new carbazole derivative CNS was prepared by the condensation of 2‐hydrazine benzothiazole with 3‐aldehyde‐6‐naphthalene‐ N ‐butyl carbazole, which could highly selectively discriminate Co 2+ and Cu 2+ in different solvent systems. CNS could enable the recognition of Co 2+ by the “naked eye,” with the color changing from colorless to pale yellow in DMSO/H 2 O (v/v = 1:1). The addition of Cu 2+ made the fluorescence emission intensity increase nearly 10 times, which was accompanied by a weak blue shift of the emission peak in CH 3 CN. Under the illumination of 365 nm ultraviolet lamp, the color of the CNS solution changed from light blue to dark blue after Cu 2+ was added. The binding process could be reasonably speculated by spectrometric titrations, 1 H NMR, mass spectrometry (MS) analysis, and density functional theory (DFT) calculation. The results of fluorescence electron microscopy showed that CNS could be used as a fluorescent sensor to detect Cu 2+ in Hela cells. In addition, CNS was successfully used for the detection of Cu 2+ in actual water samples.
Type of Medium:
Online Resource
ISSN:
0009-4536
,
2192-6549
DOI:
10.1002/jccs.202100343
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2029538-8
