Open AccessTris-Triazole Based Chemosensors for Selective Sensing of Pb2+ Ions
Author(s) -
Poonam Rani,
Kashmiri Lal,
Rahul Shrivastava
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2019.22076
Subject(s) - chemistry , titration , tris , ion , triazole , photochemistry , visible spectrum , click chemistry , ultraviolet visible spectroscopy , inorganic chemistry , combinatorial chemistry , organic chemistry , biochemistry , physics , optoelectronics
A series of novel tris-trizole based neutral chemosensors (4a-c) have been synthesized via click reaction and characterized by various spectral techniques. All the synthesized triazoles were evaluated for their ion binding properties towards various cations (Cu2+, Zn2+, Ca2+, Co2+, Cd2+, Hg2+, Pb2+ and Ni2+) by UV-visible titration experiments. It was observed that the addition of Pb2+ ions to compound 4a led to significant changes in UV-visible spectrum and a new UV band was observed at 262 nm. Further, the Job′s plot confirmed the formation of 1:1 complex between compound 4a and Pb2+. The synthesizedchemosensor selectively sense Pb2+ ions in preference to other cations like Cu2+, Zn2+, Ca2+, Co2+, Cd2+, Hg2+, Pb2+ and Ni2+.