Received 4 February 2013
The title compound, C42H48O6, was obtained via formylation of 25,26,27,28-tetrapropoxycalixarene with dichloromethyl methyl ether and tin tetrachloride. It adopts a pinched cone conformation, which leads to an open cavity. The two opposite aromatic rings bearing formyl groups are almost parallel, making a dihedral angle of 29.1 (2)°. The other pair of opposite rings are close to being perpendicular, making a dihedral angle of 73.6 (1)°. Adjacent rings are almost perpendicular, making dihedral angles of 78.8 (2), 81.6 (1), 78.2 (1) and 74.7 (1)°.
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FJ2615 ).
We gratefully acknowledge the financial support from the Natural Science Foundation of China (No. 21002009), the Major Program for Natural Science Research of Jiangsu Colleges and Universities (12 K J A150002), the Scientific and Technological Project of Changzhou (CJ20115019), and the Qing-Lan Project of Jiangsu Province.
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