J. Bernstein
Feb 15, 1975
Citations
0
Influential Citations
10
Citations
Journal
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry
Abstract
1,2-Diphenylcyclopentene (C17H16) is monoclinic, space group P21, with a=9.025 (3), b=9.516 (4), c=8.036 (2) A, ,6= 112-4 (5) °, Z=2. The structure was solved by direct methods from 1647 counter reflexions, and refined anisotropically to R = 0.078. The angle between the normals to the two phenyl rings, whose disposition approximates C2 symmetry, is 62 °. The pattern of deviations of atoms from the best plane in the cyclopentene ring is consistent with approximate Cs symmetry corresponding to the 'envelope' conformation, with a dihedral angle of 17-2 °.