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Acta Cryst. (2012). E68, o1-o2  [ doi:10.1107/S1600536811051208 ]

5',11'-Dihydrodispiro[cyclohexane-1,6'-indolo[3,2-b]carbazole-12',1''-cyclohexane]

I. A. Guzei, L. C. Spencer, E. Codner and J. M. Boehm

Abstract: The title compound, C28H30N2, is a symmetrical 2:2 product from the condensation of indole and cyclohexanone. It is the only reported 5,11-dihydroindolo[3,2-b]carbazole compound in which the spiro atoms are quaternary C atoms. Crystals were grown by vapor diffusion in a three-zone electric furnace. The molecule resides on a crystallographic inversion center. The cyclohexyl rings are in a slightly distorted chair conformation, whereas the indole units and the spiro-carbons are coplanar within 0.014 Å.

Online 3 December 2011


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