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Doubly bridged biscalix[4]arene for homotropic and heterotropic allosteric effects on ion recognition |
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| Authors: | Tatsuya Nabeshima Toshiyuki Saiki Keiko Sumitomo Shigehisa Akine |
| Affiliation: | Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan |
| Abstract: | A novel host, which shows homotropic and heterotropic allostery for Na+ and Ag+ recognition, is constructed by utilizing a biscalix[4]arene skeleton bearing bipyridine and ester moieties. The host binds two Na+ ions, but the second binding to Na+ is considerably suppressed by the first Na+ ion bound in the other binding site. |
| Keywords: | Calix[4]arene Bipyridine Homotropic allostery Heterotropic allostery Ion recognition |
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