Acta Cryst. (2012). E68, o2741 [ doi:10.1107/S160053681203560X ]
Abstract: In the title compound, C18H16N2, there are two independent half-molecules (A and B) in the asymmetric unit, each molecule being completed by an inversion center situated in the mid-point of the central N-N bond. The molecules themselves therefore are essentially planar with r.m.s. deviations of 0.015 (1) and 0.020 (1) Å, respectively. In the crystal, molecules are connected via C-H interactions in which only type B molecules are donors, while both A and B molecules act as acceptors. As a result, type B molecules are linked into infinite chains along b, which are interconnected by molecules of type A.
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