Ontology highlight
ABSTRACT:
SUBMITTER: Li Z
PROVIDER: S-EPMC3588550 | biostudies-other | 2013 Mar
REPOSITORIES: biostudies-other
Li Zhengyi Z Ma Hongzhao H Lai Yuan Y Chen Liang L Sun Xiaoqiang X
Acta crystallographica. Section E, Structure reports online 20130223 Pt 3
The title compound, C42H48O6, was obtained via formyl-ation of 25,26,27,28-tetra-propoxycalix[4]arene with dichloro-methyl methyl ether and tin tetra-chloride. 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 dihe ...[more]