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Structure and Biological Activity of K(H2O)L (L = 5,7-Dihydroxy-6,4'-dimethoxyisoflavone-3'-sulfonate)

  • Guo, Ya-Ning (School of Chemistry and Materials Science, Shaanxi Normal University) ;
  • Zhang, Xue-Ling (School of Chemistry and Materials Science, Shaanxi Normal University) ;
  • Zhang, Zun-Ting (School of Chemistry and Materials Science, Shaanxi Normal University)
  • Published : 2006.09.20

Abstract

Potassium(I) with 5,7-dihydroxy-6,4'-dimethoxyisoflavone-3'-sulfonate (L) assembles to K($H_2O$)L (L = 5,7-dihydroxy-6,4'-dimethoxyisoflavone-3'-sulfonate). It was characterized by single-crystal X-ray diffraction, element analysis, IR and $^1H$ NMR spectroscopy. It crystallizes in the monoclinic space group $P2_1$/n and reveals a seven-coordinate complex. Polyhedra potassium chains, C-H${\cdot}{\cdot}{\cdot}\pi$ and C-H${\cdot}{\cdot}{\cdot}$O and O-H${\cdot}{\cdot}{\cdot}$O hydrogen bonds lead K($H_2O$)L to a three-dimensional network structure. The biological activity of resistance to hypoxia was tested, and the results showed that the biological activity of resistance to hypoxia of K($H_2O$)L is as good as that of its precursor, irisolidone.

Keywords

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