title: In control of the speed of rotation in molecular motors. Unexpected retardation of rotary motion.
abstract: Surprisingly, a new motor with a tetrahydronaphthalene upper part rotates slower than the original molecular motor with a tetrahydrophenanthrene upper part despite decreased steric hindrance.
authors.affiliation: Department of Organic and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
authors.forename: Edzard M
authors.initials: EM
authors.lastname: Geertsema
authors.forename: Nagatoshi
authors.initials: N
authors.lastname: Koumura
authors.forename: Matthijs K J
authors.initials: MK
authors.lastname: ter Wiel
authors.forename: Auke
authors.initials: A
authors.lastname: Meetsma
authors.forename: Ben L
authors.initials: BL
authors.lastname: Feringa