Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Ying Chen, Wen-tao Yu, Zhi-qiang Liu, Ping Yu.
The complete molecule of the title compound, C28H28B2Br4O4, is generated by the application of a centre of inversion. In the molecule, the BO2 plane is perpendicular to that through the pyrene ring [dihedral angle = 86.27 (13)°]. In the crystal, molecules stack into columns along the b axis, the closest contact between these being of the type C—Br⋯π.
For background to the reactions of pyrene, see: Miura & Yamano (1995 ▶). For the structure of the non-brominated derivative, see: Coventry et al. (2005 ▶).