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Anderson, J.E.; Bettels, B.R.; Hoffmann, H.M.R.; Pauluth, D.; Hellmann, S.; Beckhaus, H.D.; Ruchardt, C., Two-fold rotational barriers in 1,1,2,2-tetrasubstituted ethanes. A dynamic NMR and molecular mechanics study of some highly-branched saturated hydrocarbons, Tetrahedron, 1988, 44, 3701. [all data]