Acta Cryst. (2003). E59, o1607-o1609  [ doi:10.1107/S1600536803021615 ]

1,15-Diaza-3,4:12,13-dibenzo-5,8,11-trioxacycloheptadecane hemihydrate

T. Hökelek, S. Bilge and Z. Kiliç

Abstract: The title compound, C₂₀H₂₆N₂O₃·0.5H₂O, contains a 17-membered diaza-crown ether ligand with three ether O and two N atoms. It consists of the macrocyclic ligand and one half water molecule; the latter possesses crystallographically imposed C₂ symmetry. In the macrocyclic ring, the mean NO distance is 3.995  (4)  Å. The macrocyclic inner hole size, estimated as twice the mean distance of the donor atoms from their centroid, is approximately 1.29  Å.

Online 7 October 2003

Copyright © International Union of Crystallography
IUCr Webmaster