In the title compound, Na+·4C7H5N6
+·5BF4
−, the Na+ ion lies on a fourfold rotation axis and one of the tetrafluoridoborate ions lies on a site of symmetry
. Each Na+ ion is surrounded by four symmetry-related tetrafluoridoborate ions, and is eight-coordinated by F atoms, the Na
F separation being 2.3956 (15) or 2.4347 (17) Å. The hexaazaphenalenium ring system is essentially planar. In the crystal structure, the cations and anions are linked into a three-dimensional network by N—H
N and C—H
F hydrogen bonds.
. Each Na+ ion is surrounded by four symmetry-related tetrafluoridoborate ions, and is eight-coordinated by F atoms, the Na
F separation being 2.3956 (15) or 2.4347 (17) Å. The hexaazaphenalenium ring system is essentially planar. In the crystal structure, the cations and anions are linked into a three-dimensional network by N—H
N and C—H
F hydrogen bonds.


![[triangle]](/corehtml/pmc/pmcents/rtrif.gif)


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