The title compound, C(17)H(20)N(4)O(2), has crystallographic inversion symmetry. In the crystal structure, inter-molecular hydrogen bonding between adjacent urea groups gives rise to infinite polymeric chains diagonally across the bc plane. With a centroid-centroid distance of 3.295 (2) Å, π-π stacking is present in the crystal along the same plane.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201411 | PMC |
| http://dx.doi.org/10.1107/S1600536811035343 | DOI Listing |
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