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The central rings of 1,2,3,4,7,8,9,10-octahydrochrysene, C18H20, are essentially planar, with the r.m.s. deviation of the atoms defining the plane from the best-fit plane being 0.013 (2) Å. The outer rings are found to be substantially non-planar, contrary to the conclusion of an earlier study based on photographic data [Ferrier & Iball (1958). Acta Cryst. 11, 325-329]. The C-C single-bond distances in the outer rings are quite uniform, with the range of observed values varying by only 0.017 (6) Å. There are no notably close intermolecular approaches.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks global, octahydrochrysene

CCDC reference: 126719

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