4,8,9,10-Tetraphenyl-1,3-diazaadamantan-6-one acetone hemisolvate

In the title compound, $C_{32}H_{28}N_{2}O·0.5C_3H_6O$, the two axial and two equatorial phenyl substituents are essentially planar. There are no hydrogen-bonded interactions between the two independent molecules in the asymmetric unit. The crystal packing is characterized by $C-H{...}O$ interactions. The solvent (acetone) molecule in the crystal structure significantly influences the packing, features of which are distinctly different from those of unsolvated 4,8,9,10-tetraphenyl-1,3-diazaadamantan-6-one and its methoxy- and chloro-substituted analogues

4,8,9,10-Tetraphenyl-1,3-diazaadamantan-6-one

In the molecule of the title compound, $C_{32}H_{28}N_{2}O$, two of the four phenyl substituents occupy axial and the other two occupy equatorial positions relative to their respective $C_{5}N$ rings of the adamantane framework. The crystal packing is characterized by weak $C-H{...}O$ interactions. The packing features are distinctly different from those of the crystals of the methoxy- and chloro-substituted analogues