title: Diastereomer assignment of an olefin-linked bis-paracyclophane by ion mobility mass spectrometry.
abstract: trans-1,2-Bis([2.2]paracyclophanyl)ethene (1) exists as a pair of diastereomers whose conformations, and thus effective collision cross sections, are quite different. The two forms can be obtained by different transition metal-catalyzed reactions. To assign meso and racemic structures, a novel method is reported in which experimental gas-phase ion mobility data are compared with theoretical structures obtained from molecular mechanics calculations.
authors.affiliation: Department of Chemistry and Biochemistry, Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA.
authors.forename: Erin Shammel
authors.initials: ES
authors.lastname: Baker
authors.forename: Janice W
authors.initials: JW
authors.lastname: Hong
authors.forename: Jennifer
authors.initials: J
authors.lastname: Gidden
authors.forename: Glenn P
authors.initials: GP
authors.lastname: Bartholomew
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Bazan
authors.forename: Michael T
authors.initials: MT
authors.lastname: Bowers