Kirchner, MT and Bläser, D and Boese, R and Thakur, TS and Desiraju, GR (2009) 1,3-Difluorobenzene. In: Acta Crystallographica Section E, 65 (11). O2668.
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The weak electrostatic and dispersive forces between C([delta]+)-F([delta]-) and H([delta]+)-C([delta]-) are at the borderline of the hydrogen-bond phenomenon and are poorly directional and further deformed in the presence of other dominant interactions, e.g. C-H...[pi]. The title compound, C6H4F2, Z' = 2, forms one-dimensional tapes along two homodromic C-H...F hydrogen bonds. The one-dimensional tapes are connected into corrugated two-dimensional sheets by further bi- or trifrucated C-H...F hydrogen bonds. Packing in the third dimension is controlled by C-H...[pi] interactions.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to International Union of Crystallography.|
|Keywords:||single-crystal X-ray study; T = 153 K; mean �(C–C) = 0.002 A° R factor = 0.032; wR factor = 0.100; data-to-parameter ratio = 14.4.|
|Date Deposited:||22 Feb 2010 07:40|
|Last Modified:||19 Sep 2010 05:55|
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