10,12-Dimethylpteridino[6,7-f][1,10]phenanthroline-11,13(10H,12H)-dione–chloroform (1/1)

Abstract

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) Å.