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What is torsional energy?

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Torsional energy – The energy it takes to overcome torsional strain, or the difference in energy between eclipsed and staggered conformations.


Likewise, what is the meaning of torsional strain?

Torsional strain or eclipsing strain is the increase in potential energy of a molecule due to repulsion between electrons in bonds that do not share an atom. eg: Consider two conformations of ethane: The smallest dihedral angle is 60º in 1; it is 0º in 2. Consequently, torsional strain is greater in 2 than in 1.

Also, how do you know if you have a torsional strain? For simplicity’s sake, torsional strain is defined as as the strain experienced by the bonds when conformations are not staggered. So, at any angle other than 60, 120, or 180, there is torsional strain. Additionally, torsional strain can only ever exist in atoms separated by only three bonds.

In this manner, what is the difference between a steric and torsional strain?

Torsional Strain: When rotating a molecule around a bond, the torsional strain is the repulsion caused by the electrons in between different groups when they pass by each other. Steric Strain: Strain caused by the electrons in between different groups.

What is steric energy?

A molecule can possess different kinds of energy such as bond and thermal energy. Molecular mechanics calculates the steric energy of a molecule–the energy due to the geometry or conformation of a molecule. The effect of structure on reactivity is important for large molecules like proteins.

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