A.: Automating Experimentation on

R factor = 0.058; wR factor = 0.156; data-to-parameter ratio = 13.8. In the title molecule, C27H20N2O, a triphenylamine derivative of quinoline, the three benzene rings linked through an N atom form a propeller shape, with dihedral angles between the mean planes of pairs of rings of 75.57 (9), 55.68 (9) and 83.66 (9). The quinoline ring is essentially planar, with an r.m.s. deviation of the fitted atoms of 0.0155 Å, and forms a dihedral angle of 33.52 (8) with the benzene ring to which it is bonded. Weak C—H interactions are also observed in the crystal structure. Related literature For background to triphenylamine derivatives, see: Lin et al. (2010). For preparation, see: Liu et al. (2011). For the crystal structure of a related compound, see: Xie et al. (2011)