title: Self-inclusion in 5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(methoxycarbonylmethoxy)calix[4]arene chloroform trisolvate.
abstract: The title compound, C(47)H(60)O(6).3CHCl(3), is the first example of a lower-rim mono-ester calixarene derivative to be crystallographically characterized. The cone conformation adopted by the macrocycle is stabilized by three intramolecular hydrogen bonds. Self-inclusion of the methyl ester chain in the cavity of an adjacent molecule gives rise to infinite chains parallel to the c axis. C-H...pi interactions involving the methyl group most imbedded in the cavity contribute to the stabilization of the system.
authors.affiliation: ECPM (CNRS UMR 7512), 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
authors.forename: Amel Ben
authors.initials: AB
authors.lastname: Othman
authors.forename: Najah
authors.initials: N
authors.lastname: Cheriaa
authors.forename: Rym
authors.initials: R
authors.lastname: Abidi
authors.forename: Jacques
authors.initials: J
authors.lastname: Vicens
authors.forename: Pierre
authors.initials: P
authors.lastname: Thuéry