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Figure 1
Perspective views of compounds (I)–(VII), showing the atom-numbering schemes. Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. The dashed lines indicate the symmetry-independent N+—H⋯O− or N+—H⋯N hydrogen bonds.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 74| Part 5| May 2018| Pages 580-586
https://doi.org/10.1107/S2056989017017856
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