Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 1 (January 2013)


organic compounds



gk2546 scheme

Acta Cryst. (2013). E69, o119    [ doi:10.1107/S160053681205088X ]

1-(Prop-2-ynyl)-1H-benzimidazol-2(3H)-one

Y. Ouzidan, Y. Kandri Rodi, F. Ouazzani Chahdi, E. M. Essassi, M. Saadi and L. El Ammari

Abstract: The benzimidazolone part of the title molecule, C10H8N2O, is almost planar [r.m.s. deviation = 0.014 (1) Å] and the NCH2C[triple bond]CH group forms a dihedral angle of 67.95 (6)° with its best plane. In the crystal, molecules form inversion dimers via pairs of N-H...O hydrogen bonds. C-H...O interactions connect the dimers, forming a two-dimensional polymeric network parallel to (100).


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