Received 8 June 2010
In the title molecule, C37H38O6, the non-fused C atom belonging to the five-membered ring of the fluorene system is connected to two p-phenylene rings, the rings opening up the Caryl-C-Caryl angle to 113.1 (1)°. The four-atom -O-CH2-C(=O)-O- chain between the p-phenylene ring and the tert-butyl group assumes a more regular W-shaped conformation for one substituent [O-C-C-C torsion angle = 171.9 (2)°] but a less regular W-shaped conformation for the other [torsion angle = 147.4 (2)°].
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: ZS2047 ).
We thank the Higher Education Commission of Pakistan and the University of Malaya for supporting this study.
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Westrip, S. P. (2010). J. Appl. Cryst. 43. Submitted.