The two phenyl rings of the title compound, C13H14N3+. CF3CO2-, assume
a syn conformation with respect to the unsubstituted N atom of the ca
tion. Bond lengths and angles within the guanidinium moiety are close
to those expected for a central C-sp2 atom, accounting for some charge
delocalization between the three C-N bonds. The structure is stabiliz
ed by a two-dimensional network of intermolecular hydrogen bonds, wher
e the carboxylate O atoms of the anions are accepters from the N-H gro
ups of the diphenylguanidinium cations.