Acta Cryst. (2003). E59, o2028-o2029  [ doi:10.1107/S1600536803026977 ]

A monoclinic polymorph of 2,3,2',3'-tetrakis(2-pyridyl)-6,6'-biquinoxalinyl

A. Neels and H. Stoeckli-Evans

Abstract: When recrystallized from ethanol, the title compound, C₃₆H₂₂N₈, crystallized in the monoclinic space group P2₁/n, with the molecule located on an inversion center. The quinoxaline moiety is approximately planar and is coplanar with the symmetry-related moiety in the molecule. The two pyridine substituents lie out of the plane of the quinoxaline moiety by 40.1 (1) and 42.3 (1)°. They are inclined to one another by 56.8 (2)°, with their N atoms on opposite sides of the mean plane through the quinoxaline moiety.

Online 29 November 2003

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