A Fluorescent Dipyrrinone Oxime for the Detection of Pesticides and Other Organophosphates
Document Type
Article
Publication Date
1-1-2012
Department
Chemistry and Biochemistry
School
Mathematics and Natural Sciences
Abstract
An N,N-carbonyl-bridged dipyrrinone oxime has been synthesized and studied as a potential sensor for organophosphates. The molecular sensor underwent a drastic colorimetric response upon formation of the adduct. The pesticide dimethoate was found to produce the biggest spectral response, with a limit of detection equal to 4.0 ppm using UV–visible spectroscopy. Minimal fluorescence “turn on” via a PET mechanism was seen, and molecular modeling studies were used to explain the lower than expected PET response. The X-ray crystal structure of the fluorescent dipyrrinone oxime was also obtained.
Publication Title
Organic Letters
Volume
14
Issue
11
First Page
2686
Last Page
2689
Recommended Citation
Walton, I.,
Davis, M.,
Munro, L.,
Catalano, V. J.,
Cragg, P. J.,
Huggins, M. T.,
Wallace, K. J.
(2012). A Fluorescent Dipyrrinone Oxime for the Detection of Pesticides and Other Organophosphates. Organic Letters, 14(11), 2686-2689.
Available at: https://aquila.usm.edu/fac_pubs/8864