- Strain energy
molecule, strain energy is released when the constituent atomsare allowed to rearrange themselves in a chemical reactionor a change of chemical conformationin a way that:
ring strainand/or steric strain,
Allylic strain, and
pentane interferenceare reduced [March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure Michael B. Smith, Jerry March Wiley-Interscience, 5th edition, 2001, ISBN 0-471-58589-0] .
For example, the
heat of combustionof cyclopropane(696 kJ/mol) is higher than that of propane(657 kJ/mol) per methyleneunit.
Compounds with unusually large strain energy include
tetrahedranes, propellanes, cubanes, fenestranes and cyclophanes.
In view aspect of Mechanics: Strain Energy
The external work done on an elastic member in causing it to distort from its unstressed state is transformed into strain energy which is a form of potential energy. The strain energy in the form of elastic deformation is mostly recoverable in the form of mechanical work.
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