title: Gyroscope-like molecules consisting of three-spoke stators that enclose "switchable" neutral dipolar rhodium rotators; reversible cycling between faster and slower rotating Rh(CO)I and Rh(CO)2I species.
abstract: trans-Rh(CO)(Cl)(P((CH(2))(14))(3)P) is prepared from trans-Rh(CO)(Cl)(P((CH(2))(6)CH[double bond, length as m-dash]CH(2))(3))(2) by a metathesis/hydrogenation sequence, and converted by substitution or addition reactions to Rh(CO)(I), Rh(CO)(2)(I), Rh(CO)(NCS), and Rh(CO)(Cl)(Br)(CCl(3)) species; the Rh(CO)(Cl) and Rh(CO)(I) moieties rapidly rotate within the cage-like diphosphine, but the other rhodium moieties do not.
authors.affiliation: Institut für Organische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany.
authors.forename: Leyong
authors.initials: L
authors.lastname: Wang
authors.forename: Takanori
authors.initials: T
authors.lastname: Shima
authors.forename: Frank
authors.initials: F
authors.lastname: Hampel
authors.forename: J A
authors.initials: JA
authors.lastname: Gladysz