Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)


organic compounds



bt5752 scheme

Acta Cryst. (2012). E68, o170-o171    [ doi:10.1107/S1600536811053748 ]

2,2'-[Imidazolidine-1,3-diylbis(methylene)]diphenol

A. Rivera, L. S. Nerio, J. Ríos-Motta, K. Fejfarová and M. Dusek

Abstract: In the title molecule, C17H20N2O2, the imidazolidine ring adopts a twist conformation. The mean plane through the five atoms of the imidazolidine ring makes dihedral angles of 70.18 (4) and 74.14 (4)° with the planes of the two aromatic rings. The dihedral angle between the benzene rings is 53.11 (5)°. Both phenol -OH groups form intramolecular hydrogen bonds to the N atoms, with graph-set motif S(6). In the crystal, pairs of O-H...O hydrogen bonds link the molecules into dimers with R44(18) ring motifs. The crystal packing is further stabilized by C-H...O and weak C-H...[pi] interactions.


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