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Acta Cryst. (2009). E65, o1045-o1046 [ doi:10.1107/S1600536809013476 ]
Abstract: In the title compound, C25H18NO, a stable phenanthridinic nitroxide, the ring containing the nitroxide function assumes a twist-boat conformation and the dihedral angle formed by adjacent benzene rings is 21.78 (5)°. The phenyl substituents at position 2 are approximately orthogonal to each other, forming a dihedral angle of 81.04 (4)°. The crystal structure is stabilized by an intramolecular C-H
O hydrogen bond and by C-H![[pi]](/logos/entities/pi_rmgif.gif)
interactions.
Online 18 April 2009
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