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

3,3''-Bis(9-hydroxyfluoren-9-yl)-1,1':3',1''-terphenyl

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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