Journal
TETRAHEDRON LETTERS
Volume 53, Issue 17, Pages 2181-2184Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.02.069
Keywords
Tripodal receptors; Thiourea compound; Preorganization; Colorimetric; Thiol-ene reaction
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Funding
- Southern Methodist University
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A preorganized colorimetric tripodal thiourea receptor was synthesized in high yield utilizing a thiol-ene reaction as a primary step. The interaction of the receptor with dihydrogen phosphate, acetate, chloride, and fluoride anions was investigated using UV-vis. and H-1 NMR spectroscopic titration techniques. The binding stoichiometry of the receptor with dihydrogen phosphate and acetate was found to be 1:2, and 1:1 with chloride and fluoride. The binding constants for the receptor and dihydrogen phosphate, acetate, chloride, and fluoride were determined using HypNMR2008 and HypSpec. (c) 2012 Elsevier Ltd. All rights reserved.
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