Volume 52, Issue 39 pp. 10270-10274
Communication

An Anion-Modulated Three-Way Supramolecular Switch that Selectively Binds Dihydrogen Phosphate, H2PO4

Jesse V. Gavette

Jesse V. Gavette

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)

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Prof. Dr. Nancy S. Mills

Prof. Dr. Nancy S. Mills

Department of Chemistry, Trinity University, San Antonio, TX 78212 (USA)

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Dr. Lev N. Zakharov

Dr. Lev N. Zakharov

CAMCOR—Center for Advanced Materials Characterization in Oregon, University of Oregon, Eugene, OR 97403-1443 (USA)

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Dr. Charles A. Johnson II

Dr. Charles A. Johnson II

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)

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Prof. Dr. Darren W. Johnson

Corresponding Author

Prof. Dr. Darren W. Johnson

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)Search for more papers by this author
Prof. Dr. Michael M. Haley

Corresponding Author

Prof. Dr. Michael M. Haley

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)

Department of Chemistry and Biochemistry & Materials Science Institute, University of Oregon, Eugene, OR 97403-1253 (USA)Search for more papers by this author
First published: 09 August 2013
Citations: 60

This work was supported by NIH grant R01-GM087398, which also funded early stage intellectual property that was licensed by SupraSensor Technologies, a company co-founded by the principal investigators. We appreciate extremely helpful conversations with Prof. Pablo Ballester at ICIQ, Spain in revising some of the complex solution speciation presented herein. University of Oregon NMR facilities are supported by a grant from the National Science Foundation (CHE-0923589).

Graphical Abstract

An anionic three-way switch: A bipyridyl bis(urea)-based anion receptor that is highly selective for dihydrogen phosphate demonstrates spectroscopically distinct anion-bound conformations toward halides and select oxoanions. 1H NMR studies show the differing anion-induced conformations are reversible allowing this system to function as a three-way molecular switch.

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