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Figure 3
Graph-set assignment of the unitary level for (I)[link]; the same assignment is valid for (II)[link]. Different hydrogen-bond patterns are distinguished by different graphical symbols and defined by specific descriptors. (a) N—H⋯O=C shaded; (b) N—H⋯O—N cross-hatched; (c) O—H⋯O—N dark grey.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 63| Part 10| September 2007| Pages m448-m450
doi:10.1107/S0108270107040437
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