4-Cyano-1-methyl­pyridinium perchlor­ate

The title salt, C₇H₇N₂⁺·ClO₄⁻, crystallizes with alternating cations and anions in wavy sheets, which are formed by a number of C—H...O and C—H...N hydrogen bonds, lying approximately parallel to (001).

3-Cyano-N-methylpyridinium perchlorate

In the crystal of the title mol­ecular salt, C₇H₇N₂⁺·ClO₄⁻, the components are linked by C—H...O and C—H...N inter­actions, generating zigzag chains running parallel to [100].