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The title structure, 3C2H7N4O+·HFPO3−·FPO32−·H2O, contains three independent 2-carbamoylguanidinium cations, one fluorophosphonate, one hydrogen fluorophosphonate and one water molecule. There are three different layers in the structure that are nearly perpendicular to the c axis. Each layer contains a cation and the layers differ by the respective presence of the water molecule, the hydrogen fluorophosphonate and fluorophosphonate anions. N—H
O hydrogen bonds between the guanylurea molecules that interconnect the molecules within each layer are strong. The layers are interconnected by strong and weak O—HO hydrogen bonds between the anions and water molecules, respectively. Interestingly, the configuration of the layers is quite similar to that observed in 2-carbamoylguanidinium hydrogen fluorophosphonate [Fábry et al. (2012). Acta Cryst. C68, o76–o83]. There is also present a N—HF hydrogen bond in the structure which occurs quite rarely.
O hydrogen bonds between the guanylurea molecules that interconnect the molecules within each layer are strong. The layers are interconnected by strong and weak O—HO hydrogen bonds between the anions and water molecules, respectively. Interestingly, the configuration of the layers is quite similar to that observed in 2-carbamoylguanidinium hydrogen fluorophosphonate [Fábry et al. (2012). Acta Cryst. C68, o76–o83]. There is also present a N—HF hydrogen bond in the structure which occurs quite rarely.organic compoundsOpen access
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In the title compound, C2H7N4O+·BF4−, intermolecular N—HO hydrogen bonds connect the cations into chains parallel to the c axis, with graph-set motif C(4). These chains are in turn connected into a three-dimensional network by intermolecular N—HF hydrogen bonds. The B—F distances distances in the anion are not equal.
O hydrogen bonds connect the cations into chains parallel to the c axis, with graph-set motif C(4). These chains are in turn connected into a three-dimensional network by intermolecular N—HF hydrogen bonds. The B—F distances distances in the anion are not equal.
