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Figure 3
Hydrogen bonding in the crystal structure of 1. Protonated mol­ecules of 2,5-di­aza­bicyclo­[2.2.1]heptane are linked by N—H⋯Br hydrogen bonds, forming slabs parallel to (100). These slabs are linked by N—H⋯Br hydrogen bonds into a three-dimensional network. Displacement ellipsoids are drawn at the 30% probability level. H atoms not involved in hydrogen bonding have been omitted for clarity.

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ISSN: 2056-9890
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