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. 2009 Mar 28;65(Pt 4):o916.
doi: 10.1107/S1600536809010526.

3,3,6,6-Tetra-methyl-9-phenyl-3,4,5,6-tetra-hydro-9H-xanthene-1,8(2H,7H)-dione

B Palakshi Reddy, V Vijayakumar, T Narasimhamurthy, J Suresh, P L Nilantha Lakshman

3,3,6,6-Tetra-methyl-9-phenyl-3,4,5,6-tetra-hydro-9H-xanthene-1,8(2H,7H)-dione

B Palakshi Reddy et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C(23)H(26)O(3), the three six-membered rings of the xanthene system are non-planar, having total puckering amplitudes, Q(T), of 0.443 (2), 0.202 (2) and 0.449 (2) Å. The central ring adopts a boat conformation and the outer rings adopt sofa conformations. The crystal structure is stabilized by van der Waals inter-actions.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound, showing 30% probability displacement ellipsoids and the atom-numbering scheme.
See this image and copyright information in PMC

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