Author(s)
D. G. Morris, S. Higgins, K. S. Ryder, R. A. Howie, K. W. Muir
ISBN
0108-2701
Publication year
2000
Periodical
Acta Crystallographica Section C-Crystal Structure Communications
Periodical Number
Volume
56
Pages
570-571
Author Address
Molecules of 13H-dibenzo[a,i]fluoren-13-one, C21H12O, straddle a crystallographic mirror plane and are essentially planar, with a dihedral angle of only 1.9 (1)degrees between the two naphthalene ring systems. Repulsive intramolecular C=O … H interactions therefore do not explain the larger distortions found in isomeric ketones.