Abstract
In the title compound, C31H22O2, the bond angle at the C atom belonging to the five-membered ring of the fluorene system is opened to 112.64 (12)°. The two benzene rings are twisted with respect to the fluorene ring system at dihedral angles of 72.81 (6) and 81.83 (6)°. One Caryl—O—C—C fragment is extended, with a C—O—C—C torsion angle of −178.77 (13)°, but the other Caryl—O—C—C fragment is bent, with a C—O—C—C torsion angle of 64.78 (19)°. Intermolecular weak C—H⋯O hydrogen bonding is present in the crystal structure.
Highlights
Structure Reports OnlineKey indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.002 A; R factor = 0.032; wR factor = 0.082; data-to-parameter ratio = 9.3
C31H22O2, the bond angle at the C atom belonging to the five-membered ring of the fluorene system is opened to 112.64 (12)
The two benzene rings are twisted with respect to the fluorene ring system at dihedral angles of 72.81 (6) and 81.83 (6)
Summary
Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.002 A; R factor = 0.032; wR factor = 0.082; data-to-parameter ratio = 9.3. C31H22O2, the bond angle at the C atom belonging to the five-membered ring of the fluorene system is opened to 112.64 (12). The two benzene rings are twisted with respect to the fluorene ring system at dihedral angles of 72.81 (6) and 81.83 (6). Intermolecular weak C—HÁ Á ÁO hydrogen bonding is present in the crystal structure. Related literature For the synthesis of copolyethers having 1,3,4-oxadiazole rings and fluorene groups from the polymerization of 9,9-bis(4propargyloxyphenyl)fluorene, see: Hamciuc et al (2009). See: Shah et al (2010)
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