Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 1 (January 2013)


organic compounds



mw2098 scheme

Acta Cryst. (2013). E69, o88-o89    [ doi:10.1107/S1600536812048957 ]

2,2,7,7-Tetramethyl-1,2,3,4,5,6,7,8-octahydroacridine-1,8-dione

S. Öztürk Yildirim, R. J. Butcher, R. Simsek, A. El-Khouly and C. Safak

Abstract: The whole molecule of the title compound, C17H21NO2, is generated by twofold rotational symmetry. The N atom and the C and H atoms in position 4 of the pyridine ring lie on the twofold axis. The cyclohexene ring has a sofa conformation with the CH2 C atom adjacent to the dimethyl-substituted C atom displaced by 0.5949 (16) Å from the mean plane of the other five C atoms. In the crystal, weak C-H...O interactions link the molecules into chains parallel to the a axis. In addition, [pi]-[pi] stacking interactions [centroid-centroid distance = 3.8444 (7) Å] contribute to the stabilization of the crystal structure.


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