Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o478-o479    [ doi:10.1107/S1600536813005473 ]


A. E.-G. E. Amr, A. M. El-Agrody, M. A. Al-Omar, S. W. Ng and E. R. T. Tiekink

Abstract: In the title compound, C21H15FN2O2, the furan ring has a flattened half-chair conformation [the methine C atom lies 0.136 (2) Å above the C5 plane which has an r.m.s. deviation of 0.0229 Å]. Overall, the 1H-benzo[f]chromene fused-ring system approximates a plane (r.m.s. deviation of the 14 non-H atoms = 0.049 Å). The fluoro­benzene ring is almost perpendicular to this plane [dihedral angle = 89.58 (8)°]. Zigzag supra­molecular tapes along the b axis are the most notable feature of the crystal packing. This arises through an alternating sequence of 12-membered {...HNC3N}2 and eight-membered {...HNCO}2 synthons. These are connected into a three-dimensional architecture by [pi]-[pi] [inter­centroid distance for centrosymmetrically related fluoro­benzene rings = 3.5181 (10) Å] and C-H...[pi] inter­actions.

htmldisplay filedownload file

Hyper-Text Markup Language (HTML) file
[ doi:10.1107/S1600536813005473/hb7049sup0.html ]
Supplementary materials

cmldisplay filedownload file

Chemical Markup Language (CML) file
[ doi:10.1107/S1600536813005473/hb7049Isup3.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