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The title compound, C39H26F6N2O2, showed two melting transitions 477.4 and 506.5 K in a differential scanning calorimetry (DSC) study. The first of these can be attributed to a melting phase transition arising from the rotation of two trifluoromethyl groups. In the crystal structure, both trifluoromethyl groups are disordered over two sites with occupancy factors of 0.660 (17) and 0.340 (17) for the major and minor orientations, respectively. The introduction of trifluoromethyl groups inhibits π-stacking between the diazafluorene (cyclopenta[2,1-b:3,4-b']dipyridine) units. Three short F...O contacts between 2.80 (3) and 2.95 (1) Å are observed in the crystal structure.