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Figure 7
Energy-framework diagram for pyridinium formate tris­(formic acid) (CSD refcode QAFFOS). A cylinder scale of 40 is used in this case to enable representation of ion–ion energies, as well as interactions between neutral species, and energies with a magnitude less than 20 kJ mol−1 have been omitted. The cluster displays contents of three unit cells along b.

IUCrJ
Volume 4| Part 5| September 2017| Pages 575-587
ISSN: 2052-2525
https://doi.org/10.1107/S205225251700848X