Table 2. Calculated Bader atomic charges for the isolated symmetric formamid­inium cation. The order of the atoms in the isolated cation matches with that in the formamidinium cation in the refined crystal structure.

C1	+1.31	H1C	+0.50
H1A	+0.18	N2	−1.23
N1	−1.23	H2A	+0.48
H1B	+0.48	H2B	+0.50