6-[4-Chloro-2-(trifluoro­meth­yl)phen­yl]-3-fluoro-2-methyl­pyridine

In the title compound, C₁₃H₈ClF₄N, the dihedral angle between the benzene and pyridine rings is 59.8 (3)°. In the crystal, mol­ecules are stacked in columns along the b axis through weak C—H...π inter­actions.

1-(2-Amino-6-methyl­pyrimidin-4-yl)-N,N-dimethyl­piperidin-4-aminium chloride

In the title mol­ecular salt, C₁₂H₂₂N₅⁺·Cl⁻, the cation is protonated at the dimethyl-substituted tertiary N atom. The piperidine ring adopts a chair conformation with the exocyclic N—C bond in an equatorial orientation. The dihedral angle between the piperidine ring (all atoms) and the pyrimidine ring is 14.00 (1)°. In the crystal, the ions are connected by N—H...N hydrogen bonds, forming inversion dimers, which are further connected by N—H...Cl hydrogen bonds. Aromatic π–π stacking inter­actions [centroid–centroid separation = 3.4790 (9) Å] are also observed in the structure.