Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials

We demonstrated in this work the use of affinity ionic liquids, <b>AIL 1</b> and <b>AIL 2</b>, for chemoselective detection of amine and alcohol gases on a quartz crystal microbalance (QCM). These detections of gaseous amines and alcohols were achieved by nucleophilic aromati...

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Main Authors: Hsin-Yi Li, Yen-Ho Chu
Format: Article
Language:English
Published: MDPI AG 2019-12-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/1/104
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author Hsin-Yi Li
Yen-Ho Chu
author_facet Hsin-Yi Li
Yen-Ho Chu
author_sort Hsin-Yi Li
collection DOAJ
description We demonstrated in this work the use of affinity ionic liquids, <b>AIL 1</b> and <b>AIL 2</b>, for chemoselective detection of amine and alcohol gases on a quartz crystal microbalance (QCM). These detections of gaseous amines and alcohols were achieved by nucleophilic aromatic substitution reactions with the electrophilic 1,3,5-triazine-based <b>AIL 1</b> thin-coated on quartz chips. Starting with inexpensive reagents, bicyclic imidazolium ionic liquids <b>AIL 1</b> and <b>AIL 2</b> were readily synthesized in six and four synthetic steps with high isolated yields: 51% and 63%, respectively. The QCM platform developed in this work is readily applicable and highly sensitive to low molecular weight amine gases: for isobutylamine gas (a bacterial volatile) at 10 Hz decrease in resonance frequency (i.e., &#916;<i>F</i> = &#8722;10 Hz), the detectability using <b>AIL 1</b> was 6.3 ppb. Our preliminary investigation on detection of the much less nucleophilic alcohol gas by <b>AIL 1</b> was also promising. To our knowledge, no example to date of reports based on nucleophilic aromatic substitution reactions demonstrating sensitive gas detection in these triazine ionic liquids on a QCM has been reported.
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spelling doaj.art-960020dbfa584497b3c84384f8dab80c2022-12-22T03:54:39ZengMDPI AGMolecules1420-30492019-12-0125110410.3390/molecules25010104molecules25010104Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid MaterialsHsin-Yi Li0Yen-Ho Chu1Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 62102, TaiwanDepartment of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 62102, TaiwanWe demonstrated in this work the use of affinity ionic liquids, <b>AIL 1</b> and <b>AIL 2</b>, for chemoselective detection of amine and alcohol gases on a quartz crystal microbalance (QCM). These detections of gaseous amines and alcohols were achieved by nucleophilic aromatic substitution reactions with the electrophilic 1,3,5-triazine-based <b>AIL 1</b> thin-coated on quartz chips. Starting with inexpensive reagents, bicyclic imidazolium ionic liquids <b>AIL 1</b> and <b>AIL 2</b> were readily synthesized in six and four synthetic steps with high isolated yields: 51% and 63%, respectively. The QCM platform developed in this work is readily applicable and highly sensitive to low molecular weight amine gases: for isobutylamine gas (a bacterial volatile) at 10 Hz decrease in resonance frequency (i.e., &#916;<i>F</i> = &#8722;10 Hz), the detectability using <b>AIL 1</b> was 6.3 ppb. Our preliminary investigation on detection of the much less nucleophilic alcohol gas by <b>AIL 1</b> was also promising. To our knowledge, no example to date of reports based on nucleophilic aromatic substitution reactions demonstrating sensitive gas detection in these triazine ionic liquids on a QCM has been reported.https://www.mdpi.com/1420-3049/25/1/104ionic liquidnucleophilic aromatic substitutionquartz crystal microbalanceamine gas detectionalcohol gas analysis
spellingShingle Hsin-Yi Li
Yen-Ho Chu
Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
Molecules
ionic liquid
nucleophilic aromatic substitution
quartz crystal microbalance
amine gas detection
alcohol gas analysis
title Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
title_full Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
title_fullStr Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
title_full_unstemmed Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
title_short Reaction-Based Amine and Alcohol Gases Detection with Triazine Ionic Liquid Materials
title_sort reaction based amine and alcohol gases detection with triazine ionic liquid materials
topic ionic liquid
nucleophilic aromatic substitution
quartz crystal microbalance
amine gas detection
alcohol gas analysis
url https://www.mdpi.com/1420-3049/25/1/104
work_keys_str_mv AT hsinyili reactionbasedamineandalcoholgasesdetectionwithtriazineionicliquidmaterials
AT yenhochu reactionbasedamineandalcoholgasesdetectionwithtriazineionicliquidmaterials