Date Published: June 01, 2012
Publisher: International Union of Crystallography
Author(s): Ruo-Xu Wang, Da-Zhi Gao, Fan Ye, Yan-Fei Wu, Dun-Ru Zhu.
In the title compound, C21H21N3O2, the pyridine rings and the benzene ring lie in a propeller arrangement around the central tertiary amine N atom. The dihedral angles formed by the benzene ring with the pyridine rings are 61.0 (3) and 49.6 (3)°, while the dihedral angle between the pyridine rings is 69.7 (3)°. The molecular conformation is stabilized by intramolecular bifurcated O—H⋯N hydrogen bonds. In the crystal, inversion dimers are formed via pairs of C—H⋯N hydrogen bonds.
For general background to unsymmetric phenolate compounds, see: Lambert et al. (1997 ▶); Dubois, Xiang et al. (2003 ▶); Dubois, Caspar et al. (2003 ▶); Carlsson et al. (2004 ▶). For the syntheses and structures of related compounds, see: Chirakul et al. (2000 ▶); Abe et al. (2006 ▶); Bortoluzzi et al. (2007 ▶); Koval, Huisman, Stassen, Gamez, Lutz, Spek & Reedijk (2004 ▶); Koval, Huisman, Stassen, Gamez, Lutz, Spek, Pursche et al. (2004 ▶); Koval et al. (2007 ▶); Zhu et al. (2007 ▶). For the synthesis of the title compound, see: Lambert et al. (1997 ▶); Koval et al. (2003 ▶).