Unique Coordination Mode of Potassium Ions to Glycyrrhizin: X-ray Crystal Structure of Glycyrrhizin Dipotassium Salt
The coordination of six potassium ions to glycyrrhizin (1) is shown in a crystal: two crystallographically independent (K1 and K2) and four symmetry-translated potassium ions coordinate to the oxygen atoms of the sugar-linkage moiety, and the K1 and K2 ions form seven and six coordination bonds with...
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Veröffentlicht in: | Chemistry letters 2009-11, Vol.38 (11), p.1024-1025 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | The coordination of six potassium ions to glycyrrhizin (1) is shown in a crystal: two crystallographically independent (K1 and K2) and four symmetry-translated potassium ions coordinate to the oxygen atoms of the sugar-linkage moiety, and the K1 and K2 ions form seven and six coordination bonds with the neighboring oxygen atoms, respectively. Although three carboxyl groups of 1 are in an anionic state, two of the glycosides participate in the coordination bonds with the potassium ions. |
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ISSN: | 0366-7022 1348-0715 |
DOI: | 10.1246/cl.2009.1024 |