title: Anthracene-resorcin[4]arene-based capsules: synthesis and photoswitchable features.
abstract: Herein we present the synthesis and the photochemical behavior of several new hemicarcerands containing anthracene units as photoactive species. By means of NMR investigations of compounds 9 and 11 the dimerization mode was revealed as a 9,10-9',10'-dimerization, classically known from anthracene. Nevertheless only compound 11 could be converted to the opened form upon irradiation with 300 nm. Reopening of compounds 9 and 10 could not be achieved so far either by heating or by irradiation.
authors.affiliation: Bielefeld University, Department of Chemistry, Organic Chemistry I, Universitätsstraße 25, 33615, Bielefeld, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Bringmann
authors.forename: Ralf
authors.initials: R
authors.lastname: Brodbeck
authors.forename: Ramona
authors.initials: R
authors.lastname: Hartmann
authors.forename: Christian
authors.initials: C
authors.lastname: Schäfer
authors.forename: Jochen
authors.initials: J
authors.lastname: Mattay
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D047250:Calixarenes / Q000737:chemistry*; D002214:Capsules / Q000138:chemical synthesis / Q000737:chemistry; D019281:Dimerization; D015394:Molecular Structure; D010649:Phenylalanine / Q000031:analogs & derivatives* / Q000737:chemistry; D055668:Photochemical Processes; D013237:Stereoisomerism
chemical_list: D000873:Anthracenes; D002214:Capsules; C466160:resorcinarene; D047250:Calixarenes; D010649:Phenylalanine; C034020:anthracene