Bilge, SelenKılıç, Zeynel2020-02-172020-02-172003https://doi.org/10.1107/S1600536803021615http://hdl.handle.net/20.500.12575/69621The title compound, C20H26N2O 3·0.5H2O, 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 N⋯O distance is 3.995 (4) A. The macrocyclic inner hole size, estimated as twice the mean distance of the donor atoms from their centroid, is approximately 1.29 Å. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.enCC0 1.0 UniversalArticle5911160716091600-5368