Crystal structure of trans-1,4-bis-[(tri-methyl-sil-yl)-oxy]cyclo-hexa-2,5-diene-1,4-dicarbo-nitrile

Florian Glöcklhofer; Johannes Fröhlich; Berthold Stöger; Matthias Weil

doi:10.1107/S1600536814014251

Crystal structure of trans-1,4-bis-[(tri-methyl-sil-yl)-oxy]cyclo-hexa-2,5-diene-1,4-dicarbo-nitrile

Acta Crystallogr Sect E Struct Rep Online. 2014 Jul 19;70(Pt 8):77-9. doi: 10.1107/S1600536814014251. eCollection 2014 Aug 1.

Authors

Florian Glöcklhofer¹, Johannes Fröhlich¹, Berthold Stöger², Matthias Weil²

Affiliations

¹ Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163, A-1060 Vienna, Austria.
² Institute for Chemical Technologies and Analytics, Division of Structural Chemistry, Vienna University of Technology, Getreidemarkt 9/164-SC, A-1060 Vienna, Austria.

Abstract

The asymmetric unit of the title compound, C14H22N2O2Si2, contains one half of the mol-ecule, which is completed by inversion symmetry. The cyclo-hexa-2,5-diene ring is exactly planar and reflects the bond-length distribution of a pair of located double bonds [1.3224 (14) Å] and two pairs of single bonds [1.5121 (13) and 1.5073 (14) Å]. The tetra-hedral angle between the sp (3)-C atom and the two neighbouring sp (2)-C atoms in the cyclo-hexa-2,5-diene ring is enlarged by about 3°.

Keywords: Cyanohydrin; crystal structure; cyclohexa-2,5-diene.