no-bond resonance technical
hyperconjugation

It has been shown, however, that hyperconjugation does depend on the solvent in the system.

However, they interpreted the data differently by taking into account the hyperconjugation stabilization.

Unfortunately, the results appear consistent with either a steric or a hyperconjugation argument.

All 1,3 interactions are stabilizing so they support branching and hyperconjugation.

Early studies in hyperconjugation were performed by George Kistiakowsky et al.

There are two main explanations for the gauche effect: hyperconjugation and bent bonds.

To quantify hyperconjugation effect, they designed the following isodesmic reactions in 1-butyne and 1-butene.

Of these two models, hyperconjugation is generally considered the principal cause behind the gauche effect in difluoroethane.

But for methylacetylene, hyperconjugation between the alkyl and alkynyl parts.

His work was a crucial first step to the beginnings of the ideas of hyperconjugation and conjugation effects.

Hyperconjugation is also a stabilizing factor for carbocations.

However, hyperconjugation can stabilize the positive charge-containing carbon.

An alternative explanation involving alkyl radical angle strain and hyperconjugation effects is advanced.

Stereoelectronic effect contains a large variety of subtopics, including anomeric effects and hyperconjugation.

Some authors also question the validity of this hyperconjugation model based on results from the quantum theory of atoms in molecules.

The more adjacent C-H bonds there are the larger hyperconjugation stabilization is.

Hyperconjugation can be used to explain phenomena such as the gauche effect and anomeric effect.

Hyperconjugation is also found in acyclic molecules containing heteroatoms, another form of the anomeric effect.

This is attributed to hyperconjugation.

An effect predating the 1939 hyperconjugation concept is the Baker-Nathan effect reported in 1935.

This was studied in greater detail by Swain but is still explained best by fluoride hyperconjugation.

He was also the first to attribute the lower heat of hydrogenation for these substituted compounds (compared to those without substitution) to hyperconjugation.

An analysis within quantitative molecular orbital theory shows that 2-orbital-4-electron (steric) repulsions are dominant over hyperconjugation.

This is most commonly explained by hyperconjugation, meaning little to no inductive effects but partial resonance effects.

The carbon-silicon bond is highly electron-releasing and can stabilize a positive charge in the β position through hyperconjugation.