9,9-Di-n-octyl-9H-fluorene

Abstract

The title compound, C29H42, crystallizes from the melt as a triclinic crystal. The unit cell contains three crystallographically independent molecules. The three fluorene ring systems are oriented such that two non-equivalent ring systems related by a roto-translation are separated by a third ring system oriented orthogonally to them. The octyl chains of all three molecules are perpendicular to the fluorene ring system and force a 7.4 angstroms separation between the two coplanar molecules, thereby preventing molecular pi-stacking.