Acta Cryst. (2008). E64, o712  [ doi:10.1107/S1600536808006843 ]

Partial cone conformer of 25,27-bis[(methoxycarbonyl)methoxy]-26,28-dipropoxycalix[4]arene

G.-Z. Zhang, M. Zhao, X.-L. Zhang, J.-P. Ma and D.-S. Guo

Abstract: Molecules of the title compound, C₄₀H₄₄O₈, adopt a partial cone conformation. The dihedral angles between the planes of the aromatic rings and the mean plane through the methylene C atoms bridging the aromatic rings are 35.74 (7), 85.86 (5), 87.77 (4) and 89.95 (5)°. Two opposite aryl rings are approximately parallel to each other; the others are at an interplanar angle of 52.41 (6)°. Intra- and intermolecular C-HO hydrogen bonds stabilize the molecular conformation and the crystal packing. Two C atoms of one propoxy chain are disordered over two positions; the site occupancy factors are ca 0.66 and 0.34.

Online 14 March 2008

Copyright © International Union of Crystallography
IUCr Webmaster