p-Phenyl­enediamine and its dihydrate: two-dimensional isomorphism and mechanism of the dehydration process, and N—H⋯N and N—H⋯π inter­actions

Czapik, A.; Konowalska, H.; Gdaniec, M.

doi:10.1107/S010827011000541X

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 2
(a) The two-dimensional hydrogen-bond network of (I)

formed by water molecules and primary amino groups (the ring atoms have been omitted for clarity). Hydrogen bonds are shown as dotted lines. (b) A projection of the crystal structure along the a axis. (c) N—H⋯π interactions in the (010) layers of p-phenylenediamine molecules.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 66| Part 3| February 2010| Pages o128-o132

doi:10.1107/S010827011000541X

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