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Acta Cryst. (2013). E69, o1018  [ doi:10.1107/S1600536813014682 ]

4,7-Diphenyl-1,10-phenanthroline methanol hemisolvate

J. P. Martins, P. Martín-Ramos, A. J. F. N. Sobral and M. Ramos Silva

Abstract: The asymmetric unit of the title compound, C24H16N2·0.5CH3OH, is comprised of two independent bathophenanthroline molecules (systematic name: 4,7-diphenyl-1,10-phenanthroline) and one methanol molecule. The bathophenanthroline molecules are not planar as there is a considerable rotation of all terminal phenyl rings with respect to the central phenanthroline units [dihedral angles in the range 52.21 (12)-62.14 (10)°]. In addition, a non-negligible torsion is apparent in one of the phenanthroline units: the angle between the mean planes of the two pyridine rings is 14.84 (13)°. The methanol solvent molecule is linked to both N atoms of a bathophenanthroline molecule through a bifurcated O-H...(N,N) hydrogen bond.


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