Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 10 (October 2013)

organic compounds

Acta Cryst. (2013). E69, o1514-o1515    [ doi:10.1107/S1600536813024033 ]


K. Skobridis, V. Theodorou, G. Paraskevopoulos, W. Seichter and E. Weber

Abstract: The asymmetric unit of the title compound, C44H30O2, contains two independent mol­ecules in which the terminal rings of the terphenyl element are inclined at angles of 36.3 (1) and 22.5 (1)° with respect to the central ring and the dihedral angles between the fluorenyl units are 72.3 (1) and 62.8 (1)°. In the crystal, pairs of O-H...O hydrogen bonds link the mol­ecules into inversion dimers. The hy­droxy H atoms not involved in these hydrogen bonds form O-H...[pi] inter­actions in which the central terphenyl rings act as acceptors. Weak C-H...O contacts and [pi]-[pi] [centroid-centroid distance = 4.088 (2) Å] stacking inter­actions also occur. Taking into account directed non-covalent bonding between the molecules, the crystal is constructed of supramolecular strands extending along the a-axis direction.

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