Acta Cryst. (2008). E64, o2059  [ doi:10.1107/S160053680803136X ]

2,2'-{1,1'-[Pentane-1,5-diylbis(oxynitrilo)]diethylidyne}diphenol

W.-K. Dong, Z.-W. Lv, X.-N. He, Y.-H. Guan and J.-F. Tong

Abstract: In the title compound, C₂₁H₂₆N₂O₄, there is half a molecule in the asymmetric unit with a crystallographic twofold rotation axis passing through the central C atom of the -CH=N-O-(CH₂)₅-O-N=CH- bridge. The dihedral angle formed by the two benzene rings is 80.85 (2)°. Strong intramolecular O-HN and C-HO hydrogen bonds help to establish the molecular conformation. There are also weak intermolecular - stacking interactions between neighbouring benzene rings [centroid-centroid separation = 3.502 (3) Å].

Online 4 October 2008

Copyright © International Union of Crystallography
IUCr Webmaster