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. |