Acta Cryst. (2004). E60, o539-o541  [ doi:10.1107/S1600536804004556 ]

1-Aminocyclopentanecarboxamide

Q. B. Song, Y. H. Hu, T. H. Shen and Z. M. Jin

Abstract: Crystals of the title compound, C₆H₁₂N₂O, were obtained from the reduction-hydrolysis reaction of 1-amino-1-cyclopentanecarbonitrile oxalate and the structure was determined in the monoclinic space group C2/c. There are two independent molecules in the asymmetric unit and these assume different conformations. In the two cyclopentane rings, the minimum C-C bond length is 1.456  (3)  Å and the maximum is 1.531  (3)  Å. The weighted mean C-C bond length [1.483  (9)  Å] of the two cyclopentane rings is obviously shortened in comparison with the average literature value [1.543  (18)  Å] for a cyclopentane C-C bond. Hydrogen bonds of the N-HO, N-HN and C-HO types are the principal intermolecular interactions.

Online 13 March 2004

Copyright © International Union of Crystallography
IUCr Webmaster