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Figure 3 Packing diagram illustrating the AB layer stacking pattern, which forms the 3-D crystal structure of (I) through hydrogen bonding mediated by the protonated pyridyl groups and the amine groups of the [H2dpa]2+ cations. Hydrogen bonding is shown as dashed lines. The oxygen atoms of the water mol­ecules of crystallization are shown in orange.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 64| Part 12| November 2008| Page m1601
doi:10.1107/S1600536808038373
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