title: 9-(4-Methyl-phenoxy-carbon-yl)-10-methyl-acridinium trifluoro-methane-sulfonate.
abstract: In the crystal structure of the title compound, C(22)H(18)NO(2) (+)·CF(3)SO(3) (-), adjacent cations are linked through C-H⋯π and π-π inter-actions, and the cations and anions are connected by C-H⋯O and C-F⋯π inter-actions. 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.
authors.affiliation: Faculty of Chemistry, University of Gdańsk, J. Sobieskiego 18, 80-952 Gdańsk, Poland.
authors.forename: Damian
authors.initials: D
authors.lastname: Trzybiński
authors.forename: Karol
authors.initials: K
authors.lastname: Krzymiński
authors.forename: Artur
authors.initials: A
authors.lastname: Sikorski
authors.forename: Jerzy
authors.initials: J
authors.lastname: Błażejowski