ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, vol.56, pp.207-208, 2000 (SCI-Expanded)
In the title compound, C35H26ClNO, the four-membered -lactam ring is essentially planar, with a maximum deviation of 0.012 (1) Å for the N atom. The C-C bond lengths in the -lactam ring are 1.591 (2) and 1.549 (2) Å. The two phenyl rings attached to the -lactam ring are nearly perpendicular to each other [83.2 (1)°].