Journal ArticleDOI
Nachweis gehinderter Rotationen und Inversionen durch NMR‐Spektroskopie
TLDR
Rotamere and Invertomere synthetisieren in organischen Molekulen geben sich durch die Temperaturabhangigkeit der NMR-Spektren zu erkennen as mentioned in this paper.Abstract:
Rotations- und Inversionsprozesse in organischen Molekulen geben sich durch die Temperaturabhangigkeit der NMR-Spektren zu erkennen. Das Studium der Substituenteneffekte auf die Aktivierungsbarrieren solcher Prozesse gestattet die Aufklarung von Reaktionsmechanismen, ferner lassen sich die Stabilitatsgrenzen von Isomeren ermitteln. Die Kenntnis der Stabilitatsgrenzen ist notwendig, um gezielt stabile Rotamere und Invertomere synthetisieren zu konnen.read more
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References
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Journal ArticleDOI
Specification of Molecular Chirality
TL;DR: In this article, the topological analysis of chiral molecular models has been extended to deal with organic-chemical conformations, and, on the other hand, with inorganic-chemical configurations to ligancy six.
Journal ArticleDOI
An Appraisal of Valence-bond Structures and Hybridization in Compounds of the First-row elements.
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Study of Moderately Rapid Chemical Exchange Reactions by Means of Nuclear Magnetic Double Resonance
Sture Forsén,Ragnar A. Hoffman +1 more
TL;DR: In this paper, a nuclear magnetic double resonance method for the determination of chemical exchange rates has been developed, which is applicable to systems in which a nuclear spin is reversibly transferred between two nonequivalent sites, A and B, and is obtained through the study of the decay to a new equilibrium value of Signal A upon the sudden saturation of Signal B.
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