Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1060, Issue -, Pages 264-271Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2013.12.055
Keywords
Fluorescence; Biological sensor; Triazene 1-oxide
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Funding
- CAPES/CNPq/Brazil (research Grant) [proc. 552197/2011-4]
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Triazene compounds have been known for over 100 years. This class of compounds is versatile because they have different applications as chemical and biological reagents. Currently, the tendency of applications of triazenes is as fluorescence sensors with biological and environmental functions. This work discusses the synthesis and structural characterization through IR, MS (EI), C-13 NMR, H-1 NMR, DSC and TGA analyzes of two triazene compounds, namely, 1-methyl-3-(p-carboxyphenyl)triazene 1-oxide (1) and 1-methyl-3-(phenyl)triazene 1-oxide (2). A comparative fluorescence study between these triazenes as potential compounds for application in the chemical sensors has also been carried out. The molecular and supramolecular structure of compound (1) is also determined by X-ray diffraction on single crystal, where the classic hydrogen bonds give the tridimensional arrangement. The presence of para-carboxylic group in compound (1) as well as the polarity and viscosity of the tested organic solvents resulted in a great influence on the evaluation of the fluorescence effect. These experimental findings show the potential use of triazenes as fluorescent biosensors, since the compounds (1) and (2) present antimicrobial activity. (C) 2014 Elsevier B.V. All rights reserved.
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