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Colorimetric Receptors for the Detection of Biologically Important Anions and Their Application in Designing Molecular Logic Gate
Author(s) -
Bhat Mahesh P.,
Vinayak Shraddha,
Yu Jingxian,
Jung HoYoung,
Kurkuri Mahaveer
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003147
Subject(s) - receptor , analyte , titration , chemistry , combinatorial chemistry , ion , molecule , proton nmr , aqueous solution , stoichiometry , stereochemistry , inorganic chemistry , organic chemistry , biochemistry
Three new colorimetric receptors were synthesised for the detection of biologically important anions such as fluoride and acetate in the aqueous medium. All receptors showed significant colour change for F − and AcO − ions. The synthesised receptors were characterized by spectroscopic methods such as NMR techniques for structural confirmation. The UV‐vis and 1 H NMR titrations were performed to understand the binding mechanism of the receptors with F − and AcO − ions. Further, Job's plot was used to explore the stoichiometry between receptor and analyte. Besides, the visual and spectroscopic changes of receptor R1 upon the addition of F − ion was utilised to study the reversible behaviour by adding Cr 3+ ions. This concept was explored to mimic the logic gates at the molecular level with “set‐reset” Boolean operations as a proof of concept.