1,3-Alternate and C-1,2-Alternate Tetrahomodioxacalix[4]crowns. Crystal Structures and Metal Ion Complexation |
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| Authors: | K. No Hye J. Chung Hyun J. Yu Seung H. Yang Kwan H. Noh P. Thuéry J. Vicens Jong S. Kim |
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| Affiliation: | (1) Department of Chemistry, Sookmyung Women's University, Seoul, 140-742, Korea;(2) Department of Chemistry, Konyang University, Nonsan, 320-711, Korea;(3) CEA/Saclay, DSM/DRECAM/SCM (CNRS URA 331), B{a}t. 125, 91191 Gif-sur-Yvette, France;(4) ECPM (CNRS UMR 7512), 25, rue Becquerel, Strasbourg, F-67087 Cedex, France;(5) Department of Chemistry, Dankook University, Seoul, 140-714, Korea |
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| Abstract: | Two novel tetrahomodioxacalix[4]crowns with crown-5 and crown-6 rings weresynthesized. From X-ray crystal structures, homooxacalix[4]crown-5 (3) andhomooxacalix[4]crown-6 (2) were found to be in the 1,3-alternate and theC-1,2-alternate conformations, respectively. Homooxacalix[4]crown-5 (1)shows a marked selectivity for cesium ion over other metal ions tested. |
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| Keywords: | calixarene homooxacalixarene complexation X-ray crystal structure |
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