Crystal structure of 4,5-di-bromo-phenanthrene.

ABSTRACT: The synthesis and crystal structure of the title compound, C₁₄H₈Br₂, is described. The mol-ecule is positioned on a twofold rotation axis and the asymmetric unit consists of half a mol-ecule with the other half being generated by symmetry. The presence of two large bromine atoms in the bay region significantly distorts the mol-ecule from planarity and the mean planes of the two terminal rings of the phenanthrene system are twisted away from each other by 28.51 (14)°. The torsion angle between the two C-Br bonds is 74.70 (14)° and the distance between the two Br atoms is 3.2777 (13) Å. The mol-ecules pack in layers in the crystal, with the centroids of the central rings of the phenanthrene units in adjacent layers separated by a distance of 4.0287 (10) Å. Th

SUBMITTER: Kim NS 

PROVIDER: S-EPMC5382617 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature