Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o578    [ doi:10.1107/S1600536813007381 ]


S. M. Adizov, R. F. Mukhamathanova, K. K. Turgunov, I. D. Sham'yanov and B. Tashkhodjaev

Abstract: The title compound, C18H16O8, was isolated from the plant Artemisia baldshuanica Krasch et Zarp. The mol­ecule is approximately planar, with the exception of the terminal methyl groups, the C atoms of which devitate from their attached ring planes by 1.243 (5) and 1.168 (5) Å. The dihedral angle between the substituted benzopyran and benzene rings is 5.8 (1)°; this near planarity could be due to conjugation or a packing effect. Intra­molecular O-H...O and C-H...O hydrogen bonds occur. In the crystal, mol­ecules are connected by O-H...O hydrogen bonds involving the hy­droxy and carbonyl groups, forming hydrogen-bonded chains along [001] and [1-10]. The chains are linked by C-H...O inter­actions.

htmldisplay filedownload file

Hyper-Text Markup Language (HTML) file
[ doi:10.1107/S1600536813007381/zp2001sup0.html ]
Supplementary materials

cmldisplay filedownload file

Chemical Markup Language (CML) file
[ doi:10.1107/S1600536813007381/zp2001Isup3.cml ]
Supplementary material


To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster