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

Felipe Medrano*, Sergio Lujano, Carolina Godoy-Alcántar, Hugo Tlahuext

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The whole molecule 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, molecules 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 interactions [centroid-centroid distance = 3.6746 (15) Å] involving the benzene rings of neighbouring phthalimide moieties.

Original languageEnglish
Pages (from-to)373-375
Number of pages3
JournalActa Crystallographica Section E: Structure Reports Online
Volume70
Issue number11
DOIs
StatePublished - 4 Oct 2014

Keywords

  • crystal structure
  • isoindoline
  • phthalimides
  • protection of primary amines
  • urea
  • urea-based anion receptor

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