The crystal and molecular structures of 4-bromoestradiol

Abstract

The crystal and molecular structures of 4-bromoestradiol have been determined by three-dimensional X-ray crystallographic methods. Crystals of 4-bromoestradiol obtained from a methanol solution belong to the space group P212121 and have four bromoestradiol molecules per unit cell (a = 12.672, b =22.474, c =6.325 ~, all _+0.004 A). One methanol molecule is associated with each steroid molecule.