title: First glimpse at a calixarene clathrate.
abstract: The 1979 X-ray crystal structure of the p-t-butylcalix[4]arene toluene 1 : 1 intra-cavity inclusion complex proved a landmark result that established the iconic calixarene shape, proved the tetrameric calixarene structure and showed that an intrinsic molecular cavity in an artificial receptor could contain a guest molecule.
authors.affiliation: Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK. jon.steed@durham.ac.uk
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Steed