title: Diphenylanthracene macrocylces from reductive zirconocene coupling: on the edge of steric overload.
abstract: Trimeric diphenylanthracene macrocycles were synthesized via the zirconocene-mediated coupling of 9,10-bis-[4-trimethylsilyl(ethynyl)phenyl]anthracene. The macrocycles feature a strained architecture due to orientation of the anthracene units into the plane of the macrocycle. The demetalated cyclophane exhibits a considerably higher flexibility in solution, while the zirconocene-containing macrocycle is quite rigid.
authors.affiliation: Department of Chemistry, University of California, Berkeley, California, 94720-1460, USA.
authors.forename: Viktoria H
authors.initials: VH
authors.lastname: Gessner
authors.forename: T Don
authors.initials: TD
authors.lastname: Tilley