ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.68, 2012 (ESCI)
In the acridine system of the title molecule, C26H30N2O2, both cyclohex-2-enone rings adopt sofa conformations. The indole ring system is essentially planar, with a maximum deviation of 0.017 (2) angstrom for a bridgehead C atom. An intramolecular C-H center dot center dot center dot O hydrogen bond occurs. The molecules assemble into C(6) chains in the crystal by way of N-H center dot center dot center dot O hydrogen bonds.