In chemistry, van der Waals strain is strain resulting from van der
Waals repulsion when two substituents in a molecule approach each
other with a distance less than the sum of their van der Waals radii.
Van der Waals strain is also called van der Waals repulsion and is
related to steric hindrance. One of the most common forms of this
strain is eclipsing hydrogen, in Alkanes.
In rotational and pseudorotational mechanisms
In molecules whose vibrational mode involves a rotational or
pseudorotational mechanism (such as the
^ Organic chemistry 4th. Ed., Morrison and Boyd ISBN 0-205-05838-8 ^ Rzepa, Henry S.; Cass, M.E.; Hii, K.K. "Mechanisms that Interchange Axial and Equatorial Atoms in Fluxional processes". Retrieved