{"id":4305,"date":"2021-03-22T10:29:21","date_gmt":"2021-03-22T03:29:21","guid":{"rendered":"http:\/\/chemistry.sc.mahidol.ac.th\/?page_id=4305"},"modified":"2021-03-22T16:12:55","modified_gmt":"2021-03-22T09:12:55","slug":"water-soluble-polyaromatic-based-imidazolium-for-detecting-picric-acid-pyrene-vs-anthracene","status":"publish","type":"page","link":"https:\/\/chemistry.sc.mahidol.ac.th\/water-soluble-polyaromatic-based-imidazolium-for-detecting-picric-acid-pyrene-vs-anthracene\/","title":{"rendered":"Water-soluble polyaromatic-based imidazolium for detecting picric acid: Pyrene vs. anthracene"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"4305\" class=\"elementor elementor-4305\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c0aa4e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c0aa4e8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-da39a74\" data-id=\"da39a74\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c1665d2 elementor-widget elementor-widget-image\" data-id=\"c1665d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"525\" height=\"363\" src=\"https:\/\/chemistry.sc.mahidol.ac.th\/wp-content\/uploads\/2021\/03\/024-1.jpg\" class=\"attachment-large size-large wp-image-4441\" alt=\"\" srcset=\"https:\/\/chemistry.sc.mahidol.ac.th\/wp-content\/uploads\/2021\/03\/024-1.jpg 599w, https:\/\/chemistry.sc.mahidol.ac.th\/wp-content\/uploads\/2021\/03\/024-1-300x207.jpg 300w\" sizes=\"100vw\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8895d52 elementor-widget elementor-widget-text-editor\" data-id=\"8895d52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Highly water-soluble fluorescent polyaromatic-based imidazolium compounds capable of detecting a wide-range of nitroaromatics, e.g., nitrophenols and picric acid in aqueous solution with fully quenched fluorescence are reported. The two probes contained an anthracene and pyrene group with the increased size and angularity of the pyrene ring in pyrene-based imidazolium (PIM) raising the hydrophobicity or\u00a0<em>\u03c0<\/em>&#8211;<em>\u03c0<\/em>\u00a0stacking and sensitivity of the probe towards all mono-, di-, and trinitrophenols even under harsh conditions (pH 4-8). The high affinity for nitrophenols was confirmed by single crystal X-ray crystallography. Time-dependent density functional theory (TD-DFT) reveals cation-anion interactions between the\u00a0 imidazolium and picrate ions causing fluorescent quenching through PET and charge transfer involving a dark\u00a0<em>S<\/em><sub>1<\/sub>\u00a0excited state.<\/p><p><strong>Reference<\/strong><\/p><p>\u201cWater-soluble polyaromatic-based imidazolium for detecting picric acid: Pyrene vs. anthracene\u201d Pherkkhuntod, C.; Ervithayasuporn, V.*; Chanmungkalakul, S.; Wang, C.; Liu, X.; David J. Harding, D.J.; Kiatkamjornwong, S.\u00a0<em>Sensors and Actuators: B. Chemical<\/em>\u00a0330 (2021) 1292872.\u00a0<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0925400520316270\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0925400520316270<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Highly water-soluble fluorescent polyaromatic-based imidazolium compounds capable of detecting a wide-range of nitroaromatics, e.g., nitrophenols and picric acid in aqueous solution with fully quenched fluorescence are reported. The two probes contained an anthracene and pyrene group with the increased size and angularity of the pyrene ring in pyrene-based imidazolium (PIM) raising the hydrophobicity or\u00a0\u03c0&#8211;\u03c0\u00a0stacking and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4305","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/pages\/4305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/comments?post=4305"}],"version-history":[{"count":5,"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/pages\/4305\/revisions"}],"predecessor-version":[{"id":4445,"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/pages\/4305\/revisions\/4445"}],"wp:attachment":[{"href":"https:\/\/chemistry.sc.mahidol.ac.th\/wp-json\/wp\/v2\/media?parent=4305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}