- Rotational Barriers of Strained Olefines
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For the olefins 1-8 heats of formation have been derived from heats of hydrogenation and force-field calculations, respectively.From the kinetics of their geometrical isomerisation the corresponding values for the transition states were obtained.The rotational barriers, which vary by nearly 30 kcal/mol, can be described by a unique torsional potential (65.9 +/- 0.9 kcal/mol), which is independent of the degree of substitution, if a correction is made for the steric energy contribution in the ground- and transition-states. - Key Words: Rotational barriers / Olefins, strained / Heat of Hydrogenation / Force-field calculation
- Doering, William v. E.,Roth, Wolfgang R.,Bauer, Frank,Breuckmann, Rolf,Ebbrecht, Thomas,at al.
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p. 1263 - 1276
(2007/10/02)
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