title: 2-(4-Bromo-benz-yl)-5,11,17,23-tetra-tert-butyl-25,26,27,28-tetra-methoxy-calix[4]arene.
abstract: In the title compound, C(55)H(69)BrO(4), the calixarene mol-ecule displays a 'partial cone' conformation bearing the lateral substituent in a sterically favorable equatorial arrangement between two syn-orientated arene units. The crystal packing is stabilized by weak C-H⋯π contacts, involving one tert-butyl group, and π-stacking inter-actions of the lateral bromo-benzene units [centroid-centroid distance = 3.706 (1) Å].
authors.affiliation: Institut für Organische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg/Sachsen, Germany.
authors.forename: Conrad
authors.initials: C
authors.lastname: Fischer
authors.forename: Guisheng
authors.initials: G
authors.lastname: Lin
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Seichter
authors.forename: Edwin
authors.initials: E
authors.lastname: Weber