Experimental

R factor = 0.046; wR factor = 0.165; data-to-parameter ratio = 13.5. In the title molecule, C26H26N2O, the phenyl and phenoxy rings form dihedral angles of 54.66 (7) and 84.83 (6), respectively, with the phthalazine mean plane. The crystal packing exhibits weak C—H interactions. Related literature For details of the synthesis, see: Tong et al. (2008, 2012). For related structures, see: Dilek et al. (2004); Rajnikant et al. (2006); Sakthivel et al. (2011)