Crystal and molecular structure of (1S,3S,5R,7S,8R,9R)-9-p-bromo-benzoyloxy-1,4,4,8-tetramethyltricyclo[5.4.0.0]undecane
Abstract
The crystal structure of the title compound has been determined from single-crystal X-ray data by the heavy-atom method. Crystals are monoclinic, a= 23.165(1), b= 6.000(1), c= 14.538(1)Å, β= 97° 4′, space group P21, Z= 4, i.e. 2 independent molecules per asymmetric unit. Full-matrix least-squares refinement based on 2 814 independent reflections has reached R 0.069. The molecule contains a cis-decalin system in which ring B is considerably distorted by fusion with the cyclopropane ring.