Cocrystallization of Two Different Pseudorotamers of Monocyclic Phosphorane Bearing Two Martin Ligands |
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Authors: | Yohsuke Yamamoto Shiro Matsukawa Shin-ya Furuta Kin-ya Akiba |
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Affiliation: | 1. Department of Chemistry, Graduate School of Science , Hiroshima University , Higashi-Hiroshima , Japan;2. Advanced Research Center for Science and Engineering , Waseda University , Tokyo , Japan |
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Abstract: | Solution and crystal structures of monocyclic pentacoordinate phosphoranes bearing two Martin ligands and two carbon substituents are described. When the two carbon substituents are different, relative apicophilicity of the two monodentate carbon substituents could be determined based on the equilibrium ratio of the pseudorotamers. In some cases, x-ray structural analysis could be carried out and the crystallized structure from CH 3 CN is consistent with the major pseudorotamer in solution (CD 3 CN). Furthermore, when the equilibrium ratio of pseudorotamers is almost unity, novel cocrystallization of two pseudorotamers in a single crystal was observed. |
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Keywords: | Apicophilicity Hypervalent Phosphorus Pseudorotamer Solvent Effect x-ray Structure |
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