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Metastable 9-Fluorenone: Blue-Shifted Fluorescence, Single-crystal-To-Single-Crystal Reactivity, and Evaluation as a Multimodal Fingermark Visualization Treatment

Florence, Grace, Bruce, Katy, Shepherd, H.J., Gee, William J. (2019) Metastable 9-Fluorenone: Blue-Shifted Fluorescence, Single-crystal-To-Single-Crystal Reactivity, and Evaluation as a Multimodal Fingermark Visualization Treatment. Chemistry - A European Journal, 25 (41). pp. 9597-9601. ISSN 0947-6539. (doi:10.1002/chem.201901301) (KAR id:74027)

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Abstract

A metastable form of 9-fluorenone (MS9F) has been characterized using Raman spectroscopy, fluorimetry, and X-ray diffraction techniques. MS9F emits blue fluorescence (λmax = 495

nm) upon 365 nm irradiation and undergoes a single-crystal-tosingle-crystal (SCSC) transformation to reach the ground state form (GS9F) over ca 30 minutes, whereupon it emits the expected green fluorescence. A structure-property relationship for this fluorescent behavior has been posited. MS9F and GS9F were applied as a means of visualizing latent fingermarks on a non-porous surface. This approach identified three different modes of fluorescent fingermark visualization using 9-fluorenone.

Item Type: Article
DOI/Identification number: 10.1002/chem.201901301
Uncontrolled keywords: fluorescence, forensics, Fingermark, fluorenone, Raman spectroscopy
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: William Gee
Date Deposited: 21 May 2019 14:48 UTC
Last Modified: 09 Sep 2020 12:24 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/74027 (The current URI for this page, for reference purposes)
Shepherd, H.J.: https://orcid.org/0000-0003-0832-4475
Gee, William J.: https://orcid.org/0000-0002-6520-6216
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