{2-[(9,9-Dihexylfluoren-2-yl)carbonyl]phenyl}(4-methoxyphenyl)methanone

P Narayanan,K Sethusankar,Arasambattu K Mohanakrishnan,Meganathan Nandakumar

doi:10.1107/s1600536812026773

Abstract

In the title compound, C40H44O3, the fluorene ring system is essentially planar, with a maximum deviation of 0.075 (3) Å, and forms dihedral angles of 70.62 (8) and 70.31 (8)° with the mean planes of the central benzene ring and the methoxyphenyl ring, respectively. Both the hexyl side chains have different conformations, i.e. an anti–gauche–anti–gauche conformation with C—C—C—C torsion angles of −169.3 (2), 74.2 (4), −178.0 (3) and −76.0 (6)° for one hexyl side chain and an anti–anti–anti–gauche conformation with C—C—C—C torsion angles of −177.9 (2), −176.5 (3), 171.7 (4) and 80.4 (9)° for the other. Four C atoms in one and two C atoms in the other hexyl side chains are each disordered over two sets of sites, with occupancy factors of 0.761 (3):0.239 (3) and 0.660 (6):0.340 (6). In the crystal, molecules are via pairs of C—H⋯O hydrogen bonds, forming inversion dimers and resulting in R 2 2(28) graph-set motifs.

Highlights

In the title compound, C40H44O3, the fluorene ring system is essentially planar, with a maximum deviation of 0.075 (3) Å, and forms dihedral angles of 70.62 (8) and 70.31 (8) with the mean planes of the central benzene ring and the methoxyphenyl ring, respectively
The fluorene ring system is essentially planar with a maximum deviation of 0.075 (3) Å for C27 atom
To a solution of benzo[c]furan (0.50 g, 0.898 mmol) in dichloromethane (15 ml), meta-chloroperoxybenzoic acid (0.23 g, 1.347 mmol) was added and the reaction mixture was stirred at room temperature for 5 minutes

Summary

Bruker Kappa APEXII CCD diffractometer

Refinement a Department of Physics, RKM Vivekananda College (Autonomous), Chennai. C40H44O3, the fluorene ring system is essentially planar, with a maximum deviation of 0.075 (3) Å, and forms dihedral angles of 70.62 (8) and 70.31 (8) with the mean planes of the central benzene ring and the methoxyphenyl ring, respectively. Both the hexyl side chains have different conformations, i.e. an anti–gauche–anti–gauche conformation with C—C—C—C torsion angles of. Vivekananda College, is thanked for providing facilities in the department for carrying out this work

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Crystal data

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