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β-Octaalkoxyporphyrins: Versatile fluorometric sensors towards nitrated explosives
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström. Univ Hyderabad, Sch Chem, Hyderabad 500046, India;Univ Hyderabad, ACRHEM, Hyderabad 500046, India.ORCID iD: 0000-0002-9792-401x
Univ Hyderabad, Sch Chem, Hyderabad 500046, India.
Univ Hyderabad, Sch Chem, Hyderabad 500046, India;Univ Hyderabad, ACRHEM, Hyderabad 500046, India.
2019 (English)In: Journal of Porphyrins and Phthalocyanines, ISSN 1088-4246, E-ISSN 1099-1409, Vol. 23, no 3, p. 287-295Article in journal (Refereed) Published
Abstract [en]

Real time detection of explosive residues is important to mitigate increasing security threats. Therefore, systematic studies are essential to optimize the performance of sensors. In this work, we have explored β-octamethoxyporphyrin and β-octabutoxyporphyrin to evaluate the effect of alkoxy groups in solution and in vapor phase sensing of nitrated explosives. Our systematic studies revealed a marked difference in sensitivity of these free-base porphyrins in solution state and vapor phase sensing of nitrated explosives simply by modulation of alkyl chain lengths. Alkoxyporphyrins exhibit very good sensitivity towards not only nitro aromatics but also alkyl nitro explosive taggants compared to β-octaethylporphyrin. Therefore, alkoxyporphyrins may act as versatile fluorescence turn-off based chemical sensors for nitrated explosives.

Place, publisher, year, edition, pages
2019. Vol. 23, no 3, p. 287-295
Keywords [en]
porphyrin, sensor, nitro aromatic, explosive, fluorescence
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-381829DOI: 10.1142/S1088424618501171ISI: 000461985300007OAI: oai:DiVA.org:uu-381829DiVA, id: diva2:1305436
Available from: 2019-04-16 Created: 2019-04-16 Last updated: 2019-04-16Bibliographically approved

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Rana, Anup

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