Synthesis, Characterization, and Evaluation of Rhodamine Based Sensors For Nerve Gas Mimics

Author

Aruna J. Weerasinghe
Carla S. Schmiesing
Ekkehard Sinn, Missouri University of Science and TechnologyFollow

Abstract

Six new rhodamine-B based compounds were synthesized (1-6) and used as fluorescent turn-ON sensors for diethyl chlorophosphate (DCP) in aqueous media at pH 7.0. Compound 1 and 3 gave high fluorescent enhancement with DCP compared to the other compounds. Very high selectivity and sensitivity were observed as these compounds did not show significant fluorescent enhancement with dimethyl methylphosphonate (DMMP), HCl, and metal ions, such as Na +, K +, Ca 2+, Cr 3+, Mn 2+, Fe 2+, Co 2+, Ni 2+, Cu 2+, Zn 2+, Cd 2+, Hg 2+, Pb 2+. Depending on the way the sensor is presented, results are instantaneous or observed over some minutes. © 2011 Elsevier Ltd. All rights reserved.

Recommended Citation

A. J. Weerasinghe et al., "Synthesis, Characterization, and Evaluation of Rhodamine Based Sensors For Nerve Gas Mimics," Tetrahedron, Elsevier, Jan 2011.

The definitive version is available at https://doi.org/10.1016/j.tet.2011.02.041

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0040-4020

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Elsevier, All rights reserved.

Publication Date

01 Jan 2011