In the title co-crystal, C18H12N6O2_CHCl3, intramolecular Cl3C—H_ _ _N hydrogen-bonding interactions occur between a single CHCl3 and both N atoms at the 1,10-positions on the phenanthroline portion of the molecule. The interplanar distance between inversion-related molecules is 3.241 (2) A ° .
- single-crystal X-ray study,
- T = 173 K,
- mean _(C–C) = 0.002 A°,
- R factor = 0.032,
- wR factor = 0.095,
- data-to-parameter ratio = 12.3
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