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Zinc‐Terpyridine Based Chemosensor for Detection of Pyrophosphate Anion in Aqueous Medium
Author(s) -
Das Dipankar,
Sutradhar Sourav,
Singh Akta,
Ghosh Biswa Nath
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202100054
Subject(s) - terpyridine , pyrophosphate , detection limit , fluorescence , chemistry , aqueous solution , selectivity , zinc , ion , ligand (biochemistry) , aqueous medium , inorganic chemistry , chromatography , metal , organic chemistry , catalysis , biochemistry , physics , receptor , quantum mechanics , enzyme
A simple fluorescent sensor of zinc‐terpyridine complex of the terpyridine ligand 4′‐(3,4,5‐trimethoxyphenyl)‐2,2′ : 6′,2′′‐terpyridine was prepared and utilized for selective sensing of pyrophosphate anion (PPi) in aqueous medium at physiological pH. The sensor complex showed an excellent selectivity of PPi over various other anions such as Cl − , F − , Br − , I − , CO 3 2− , HCO 3 − , NO 3 − , OH − , HPO 4 2− , SO 4 2− , SO 3 2− , S 2 O 3 2− in water. UV‐Visible and fluorescence spectroscopic method have been used to perform the detection study. The sensor complex showed ∼50 fold enhancement of fluorescence intensity upon addition of PPi and excellent sensitivity with lowest limit of detection (LOD) for the detection of PPi anion was found to be ∼300 nM.