Crystal structure of 1,3-bis-(1,3-dioxoisoindolin-1-yl)urea dihydrate: a urea-based anion receptor.

Acta Crystallogr Sect E Struct Rep Online

Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001 Col., Chamilpa, CP 62209, Cuernavaca, Mexico.

Published: November 2014


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Article Abstract

The whole mol-ecule of the title compound, C17H10N4O5·2H2O, is generated by twofold rotation symmetry and it crystallized as a dihydrate. The planes of the phthalimide moieties and the urea unit are almost normal to one another, with a dihedral angle of 78.62 (9)°. In the crystal, mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional framework structure. The crystal packing also features C-H⋯O hydrogen bonds and slipped parallel π-π inter-actions [centroid-centroid distance = 3.6746 (15) Å] involving the benzene rings of neighbouring phthalimide moieties.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4257348PMC
http://dx.doi.org/10.1107/S1600536814022144DOI Listing

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