{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,3]],"date-time":"2026-11-03T04:11:33Z","timestamp":1793679093150,"version":"4.5.1"},"reference-count":47,"publisher":"American Chemical Society (ACS)","issue":"4","license":[{"start":{"date-parts":[[2019,4,3]],"date-time":"2019-04-03T00:00:00Z","timestamp":1554249600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_termsofuse.html"}],"funder":[{"DOI":"10.13039\/501100001412","name":"Council of Scientific and Industrial Research","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/501100001412","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"Sri Ramaswamy Memorial Institute of Science and Technology","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,4,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Novel amphiphilic Zn(II)phthalocyanines (ZnPcs) peripherally substituted with four and eight dimethylaminopyridinium units (ZnPc1 and ZnPc2) were synthesized by cyclotetramerization of the corresponding phthalonitriles. The effect of aggregation and photophysical (fluorescence quantum yields and lifetimes) and photochemical (singlet oxygen generation and photodegradation under light irradiation) properties was investigated. The chemosensing ability of ZnPcs toward explosive nitroaromatic compounds was explored in aqueous medium. This study demonstrates that ZnPc1 and ZnPc2 show fluorescence quenching behavior upon interaction with different nitro analytes and show unprecedented selectivity toward 2,4,6-trinitrophenol with a limit of detection (LOD) of 0.7\u20131.1 ppm with a high quenching rate constant (Ksv) of 1.6\u20132.02 \u00d7 105. The near-infrared (NIR) fluorescence in thin films was quenched efficiently because of the photoinduced electron-transfer process through strong intermolecular \u03c0\u2013\u03c0 and electrostatic interactions. The sensing process is highly reversible and free from the interference of other commonly encountered nitro analytes. Further, experiments were performed to demonstrate the use of ZnPcs as efficient heterogeneous photocatalysts in the reduction of nitro explosives. The smart dual performance of multicharged ZnPcs in aqueous media quantifies them as attractive candidates in developing sensor materials at the NIR region and to possibly convert the toxic explosives into useful scaffolds. These results provide an interesting perspective toward elaboration of stable fluorescent systems for the selective sensing behavior of nitro explosives and their facile heterogeneous catalytic behavior in the reduction reactions.<\/jats:p>","DOI":"10.1021\/acsomega.8b02394","type":"journal-article","created":{"date-parts":[[2019,4,3]],"date-time":"2019-04-03T09:59:13Z","timestamp":1554285553000},"page":"6218-6228","source":"Crossref","is-referenced-by-count":31,"title":["Selective Detection of Trinitrophenol by Amphiphilic\nDimethylaminopyridine-Appended Zn(II)phthalocyanines at the Near-Infrared\nRegion"],"prefix":"10.1021","volume":"4","author":[{"given":"S.","family":"Kasthuri","sequence":"first","affiliation":[{"name":"SRM Institute of Science and Technology (SRMIST) , , ,","place":["Chennai, India, 603 203"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pratiksha","family":"Gawas","sequence":"additional","affiliation":[{"name":"SRM Institute of Science and Technology (SRMIST) , , ,","place":["Chennai, India, 603 203"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samarendra","family":"Maji","sequence":"additional","affiliation":[{"name":"SRM Institute of Science and Technology (SRMIST) , , ,","place":["Chennai, India, 603 203"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.","family":"Veeraiah","sequence":"additional","affiliation":[{"name":"Acharya Nagarjuna University , , Nagarjuna Nagar , , ,","place":["Guntur, Andhra Pradesh, India, 522 510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0235-2707","authenticated-orcid":true,"given":"N.","family":"Venkatramaiah","sequence":"additional","affiliation":[{"name":"SRM Institute of Science and Technology (SRMIST) , , ,","place":["Chennai, India, 603 203"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2019,4,3]]},"reference":[{"key":"2026090112171758300_cit1","doi-asserted-by":"crossref","DOI":"10.1039\/9781847552020","volume-title":"The Chemistry of Explosives","author":"Akhavan","year":"2004"},{"key":"2026090112171758300_cit2","volume-title":"Handbook of Toxic\nand Hazardous Chemicals and Carcinogens","author":"Pohanish","year":"2012","edition":"6"},{"key":"2026090112171758300_cit3","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1080\/15287399209531672","article-title":"Acute toxicity,\ndistribution, and metabolism of 2,4,6-trinitrophenol (picric acid)\nin Fischer 344 rats","volume":"37","author":"Wyman","year":"1992","journal-title":"J. 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