Next Article in Journal / Special Issue
Contamination of the Conchos River in Mexico: Does It Pose a Health Risk to Local Residents?
Previous Article in Journal / Special Issue
Estrogenic Activity of Coumestrol, DDT, and TCDD in Human Cervical Cancer Cells
Open AccessArticle

An Anthracene-Based Tripodal Chemosensor for Anion Sensing

1
Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
2
Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019, USA
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2010, 7(5), 2057-2070; https://doi.org/10.3390/ijerph7052057
Received: 7 January 2010 / Revised: 31 March 2010 / Accepted: 3 April 2010 / Published: 4 May 2010
An anthracene-based tripodal ligand was synthesized from the condensation of tren with 9-anthraldehyde, and the subsequent reduction with sodium borohydride. The neutral ligand was protonated from the reaction with p-toluenesulfonic acid to give a triply charged chemosensor that was examined for its anion binding ability toward fluoride, chloride, bromide, sulfate and nitrate by the fluorescence spectroscopy in DMSO. The addition of an anion to the ligand resulted in an enhancement in fluorescence intensity at the excitation of 310 nm. Analysis of the spectral changes suggested that the ligand formed a 1:1 complex with each of the anions, showing strong affinity for fluoride and sulfate in DMSO. The unsubstituted tren was reacted with sulfuric acid to form a sulfate complex and the structure was determined by the X-ray crystallography. Analysis of the complex revealed that three sulfates are held between two ligands by multiple hydrogen bonding interactions with protonated amines. View Full-Text
Keywords: Tren; chemosensor; anion complex; fluorescence titrations; anion receptor Tren; chemosensor; anion complex; fluorescence titrations; anion receptor
Show Figures

Graphical abstract

MDPI and ACS Style

Quinn, W.A.; Saeed, M.A.; Powell, D.R.; Hossain, M.A. An Anthracene-Based Tripodal Chemosensor for Anion Sensing. Int. J. Environ. Res. Public Health 2010, 7, 2057-2070.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop