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Enhanced shape-selective recognition of anion guests through complexation-induced organization of porphyrin hosts |
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| Authors: | Wienkers MariJo Ramos Josmalen Jemal Hikma Cardenas Chaz Wiget Paul Nelson Alfreda Free Shiloh Wu Jun Roach Rebecca Vulcan Marius Waynant Kristopher Fort Kyle Vladimirova Anna Sun Jeffery Hunt Samuel Eli Rudkevich Dmitry M Starnes Stephen D |
| Institution: | Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States. |
| Abstract: | We present a fortuitous discovery of enhanced shape-selective recognition of anion guests that stems from a complexation-induced conformational change in porphyrin hosts upon anion binding. Porphyrin hosts reported here exist in a conformation that is not favorable to guest binding. Anions that bind strongly are those that can induce a conformational change in the host to allow guest binding. Furthermore, guests that mimic the shape of the newly formed pocket bind the strongest. |
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