Details

Autor(en) / Beteiligte

• Chen, Xiaoqian
• Yang, Naqin
• Ma, Yue
• Yang, Xinan
• Ma, Peihua

Titel

A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene

Ist Teil von

• Beilstein journal of organic chemistry, 2023-06, Vol.19 (1), p.864-872

Ort / Verlag

Frankfurt am Main: Beilstein-Institut zur Föerderung der Chemischen Wissenschaften

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• In this paper, tetramethyl cucurbit[6]uril (TMeQ[6] ) and 1.2-bis(4-pyridyl)ethene (G) were used to construct a supramolecular fluorescent probe G@TMeQ[6]. The host-guest interaction between TMeQ[6] and G was investigated using NMR spectroscopy, single-crystal X-ray diffraction and various experimental techniques. The results show that TMeQ[6] and G form an inclusion complex with a host-guest ratio of 1:1 and the equilibrium association constant (ifj was 2.494 x 104 M 1. The G@TMeQ[6] fluorescent probe can sensitively recognize Hg2+ ions by fluorescence enhancement. The linear range is 0.33 x IO4-I.65 x I04 mol-L_1. R~ = 0.9926. and the limit of detection is 4.12 x 10 s mol-L_1. The fluorescent probe can be used to detect the concentration of Hg2+ ions in aqueous solution, and provides a theoretical basis for the development of new fluorescent probes for detecting heavy metal ions.