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Recognition of 1‐phenylethylamine enantiomers by thin solid films of inherently chiral calix[4]arene
Author(s) -
Kazantseva Zoya I.,
Koshets Igor A.,
Trybrat Oleksandr O.,
Yesypenko Oleksandr A.,
Kalchenko Vitali I.
Publication year - 2021
Publication title -
chirality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.43
H-Index - 77
eISSN - 1520-636X
pISSN - 0899-0042
DOI - 10.1002/chir.23351
Subject(s) - chemistry , quartz crystal microbalance , enantiomer , calixarene , cyclodextrin , acetic acid , organic chemistry , thin film , analytical chemistry (journal) , adsorption , nanotechnology , molecule , materials science
The enantiodiscrimination properties of stereomerically pure inherently chiral calix[4]arene acetic acids, as well as their esters and amides in relation to 1‐phenylethylamine stereoisomers in liquid and gaseous phases were studied by means of proton magnetic resonance spectroscopy ( 1 H NMR) and quartz crystal microbalance (QCM) techniques. Series of QCM sensors with thin films of inherently chiral calix[4]arenes, immobilized on the quartz resonator surfaces by spin‐coating and spreading drop methods have been fabricated. It was shown that sensors based on calix[4]arene acetic acids are able to recognize R ‐ and S ‐forms of 1‐phenylethylamine in gaseous phase under concentration level of 10–400 ppm.