steric effects

However, this model does not account for steric effects.

This treatment does not include ortho-substituents, which would introduce steric effects.

Additional steric effects result from the volume occupied by a substituent.

A valence bond theory study also emphasizes the importance of steric effects.

In addition, Hammett type corrections are included to account of electronic and steric effects.

Understanding steric effects is critical to chemistry, biochemistry and pharmacology.

Because the addition step is highly sensitive to steric effects, β-substituents are likely to slow the reaction.

Taft thus assumed that steric effects would influence both reaction mechanisms equally.

Norbornene under the same conditions gave a 83% ee, due to the additional steric effects involved.

The effects of these substitutions seem to be mediated by steric effects.

Steric effects can either cooperate or compete with the aforementioned electronic effects.

Steric effects arise from the fact that each atom within a molecule occupies a certain amount of space.

In pharmacology, steric effects determine how and at what rate a drug will interact with its target bio-molecules.

Steric effects play a major role in the assignment of configurations in cyclohexanes.

When they are not aromatic, rings tend not to be flat to avoid steric effects.

The second is steric stabilization, due to steric effects.

The total substituent effect is the combination of the polar effect and the combined steric effects.

This difference in steric effects can be used to help predict reactivity in chemical reactions.

Steric effects are usually smaller than electronic effects.

Many of the same catalysts can be used, though these reactions tend to be slower due to increased steric effects.

Sometimes steric effects completely outweighs the electronic preference, giving the opposite regioisomer exclusively.

This bonding supplies a basic molecular skeleton that is modified by repulsive forces generally considered steric effects.

Steric effects are the effects seen in molecules that come from the fact that atoms occupy space.

An example of steric effects is steric hindrance.

The cyclooligomerization of thiotanes illustrates the influence of steric effects on selectivity.