organic compounds
Open access
In the crystal structure of the title compound, C22H18NO2+·CF3SO3−, adjacent cations are linked through C—Hπ and π–π interactions, and the cations and anions are connected by C—HO and C—Fπ interactions. The acridine and benzene ring systems are oriented at a dihedral angle of 3.0 (1)°. The carboxyl group is twisted at an angle of 83.1 (1)° relative to the acridine skeleton. The mean planes of adjacent acridine units are parallel or inclined at an angle of 75.2 (1)° in the crystal structure.
organic compounds
Open access
In the crystal structure of the title compound, C21H15BrNO2+·CF3SO3−, the cations form inversion dimers through π–π interactions between the acridine ring systems. These dimers are further linked by C—Hπ and C—Brπ interactions. The cations and anions are connected by multidirectional C—HO and C—Fπ interactions. The acridine and benzene ring systems are oriented at 10.8 (1)°. The carboxyl group is twisted at an angle of 85.2 (1)° relative to the acridine skeleton. The mean planes of adjacent acridine units are parallel or almost parallel [inclined at an angle of 1.4 (1)°] in the crystal structure.