%0 Journal Article
%T 25,26,27,28-Tetrabutoxy-5,11,17,23-tetra-tert-butylcalix[4]arene chloroform tetrasolvate dihydrate
%A Zhengyi Li
%A Dinghao Yuan
%A Haitao Xi
%A Xiaoqiang Sun
%J Acta Crystallographica Section E
%D 2009
%I International Union of Crystallography
%R 10.1107/s160053680902217x
%X The title compound, C60H88O4¡¤4CHCl3¡¤2H2O, is the alkylated product of 5,11,17,23-tetra-tert-butylcalix[4]arene. It adopts a distorted cone conformation which leads to an open cavity. All the phenolic rings are tilted so that their tert-butyl groups are pitched away from the calix cavity. Two opposite aromatic rings are close to being perpendicular to one another [dihedral angle 85.0 (2)¡ã], while the other pair of opposite rings is almost parallel [dihedral angle 8.1 (2)¡ã], and adjacent phenolic rings are almost perpendicular [dihedral angles 82.4 (1) or 87.9 (1)¡ã]. In the crystal, the water molecule and calixarene interact by way of O¡ªH...O hydrogen bonds.
%U http://scripts.iucr.org/cgi-bin/paper?S160053680902217X