Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 12 (December 2013)

organic compounds

Acta Cryst. (2013). E69, o1859-o1860    [ doi:10.1107/S1600536813032212 ]


M. C. Costas-Lago, T. Costas, N. Vila and P. Besada

Abstract: In the title compound, C21H24N2O2Si, the carbonyl group of the heterocyclic ring and the O atom of the silyl ether group are placed toward opposite sides and the tert-butyl and pyridazinone moieties are anti-oriented across the Si-O bond [torsion angle = -168.44 (19)°]. In the crystal, mol­ecules are assembled into inversion dimers through co-operative N-H...O hydrogen bonds between the NH groups and O atoms of the pyridazinone rings of neighbouring mol­ecules. The dimers are linked by [pi]-[pi] inter­actions involving adjacent pyridazinone rings [centroid-centroid distance = 3.8095 (19) Å], generating ladder-like chains along the b-axis direction. The chains are further linked into a two-dimensional network parallel to the ab plane through weak C-H...[pi] inter­actions.

CCDC reference: 973775

htmldisplay filedownload file

Hyper-Text Markup Language (HTML) file (84.9 kbytes)
[ doi:10.1107/S1600536813032212/lr2118sup0.html ]
Supplementary materials

cmldisplay filedownload file

Chemical Markup Language (CML) file (7.0 kbytes)
[ doi:10.1107/S1600536813032212/lr2118Isup3.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