Doering, W. v. E.; Roth, Wolfgang R.; Bauer, Frank; Breuckmann, Rolf; Ebbrecht, Thomas; Herbold, Matthias; Schmidt, Rainer; Lennartz, Hans Werner; Lenoir, Dieter; Boese, Roland:
Rotational barriers of strained olefines.
1989
In: Chemische Berichte (Chem.Ber.), Jg. 122 (1989), Heft 7, S. 1263 - 1275
Artikel/Aufsatz in Zeitschrift1989Chemie
Titel:
Rotational barriers of strained olefines.
Autor(in):
Doering, W. v. E.; Roth, Wolfgang R.; Bauer, Frank; Breuckmann, Rolf; Ebbrecht, Thomas; Herbold, Matthias; Schmidt, RainerLSF; Lennartz, Hans Werner; Lenoir, Dieter; Boese, RolandLSF
Erscheinungsjahr
1989
Erschienen in:
Titel:
Chemische Berichte (Chem.Ber.)
in:
Jg. 122 (1989), Heft 7, S. 1263 - 1275
ISSN:

Abstract:

For olefins such as Me3CCH:CEtCMe3, heats of formation have been derived from heats of hydrogenation and force-field calcns. From the kinetics of their geometrical isomerization 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.