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- Title
Crystal structures of two 4-phenylbenzophenones.
- Authors
Zhang, Shi-Jie; Xiang, Hai; Rao, Guo-Wu; Hu, Wei-Xiao
- Abstract
Two 4-phenylbenzophenones ( I) and ( II) are synthesized via Friedel-Crafts reactions. There are four crystallographically independent molecules with different conformations in the crystal structure of [1,1′-biphenyl]-4-yl(2-chlorophenyl)methanone ( I). Crystals are orthorhombic, Pca2, CHClO, a = 13.699(3) Å, b = 8.9385(17) Å, c = 46.836(9) Å; V = 5735(2) Å, Z = 16, d = 1.356 g/cm. Torsion angles between the biphenyl rings are between 28.5° and 30.8°. Several C-H...O and C-H...Cl hydrogen bonds and weak π-π stacking contacts consolidate the crystal. Crystals of [1,1′-biphenyl]-4-yl(3-methoxyphenyl)methanone ( II) are orthorhombic, Pbca, CHO, a = 7.8179(15) Å, b = 16.003(3) Å, c = 23.345(5) Å; V = 2920.7(10) Å, Z = 8, d = 1.311 g/cm. The torsion angle between the biphenyl rings is 28.1° and C-H...O hydrogen bonds are observed in compound ( II).
- Subjects
CRYSTAL structure; BENZOPHENONES; HYDROGEN bonding; CHEMICAL synthesis; FRIEDEL-Crafts reaction; CONFORMATIONAL analysis; X-ray diffraction
- Publication
Journal of Structural Chemistry, 2013, Vol 54, Issue 4, p779
- ISSN
0022-4766
- Publication type
Article
- DOI
10.1134/S0022476613040185