synchronization (principle of nonperfect synchronization)
This principle applies to reactions in which there is a lack of synchronization between bond formation or bond rupture and other @[email protected] that affect the stability of products and reactants, such as @[email protected], @[email protected], electrostatic, @[email protected] and @[email protected] effects. The principle states that a product-stabilizing factor whose development lags behind bond changes at the @[email protected], or a reactant-stabilizing factor whose loss is ahead of bond changes at the @[email protected], increases the @[email protected] and decreases the 'intrinsic @[email protected]' of a reaction. For a product-stabilizing factor whose development is ahead of bond changes, or reactant factors whose loss lags behind bond changes, the opposite relations hold. The reverse effects are observable for factors that destabilize a reactant or product.
See also:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1170 [Terms] [Paper]