Journal of Organic Chemistry 2005-12-23

Colorimetric "naked eye" sensing of anions in aqueous solution.

Thorfinnur Gunnlaugsson, Paul E Kruger, Paul Jensen, Juliann Tierney, Haslin Dato Paduka Ali, Gillian M Hussey

Index: J. Org. Chem. 70(26) , 10875-8, (2005)

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Abstract

[structure: see text] The synthesis and UV-vis and NMR spectroscopic studies of thiourea-based colorimetric sensors for anions are presented. These sensors can recognize anions through hydrogen binding even in competitive pH-buffered aqueous solutions, giving rise to large color changes that are clearly visible to the naked eye.