Comparison of Quantum and Classical Theories of an Idealized Three-Body Rearrangement Collision

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Abstract
Two theories, transition‐state theory and collision theory, are available for the study of the reaction rate of a three‐body rearrangement process. Classical mechanics plays an important role in both theories. We have made computations using a model of a linear, three‐body rearrangement collision that is “solvable” in both the classical and quantum‐mechanical formulations. A comparison of the results of these calculations indicates conditions under which the use of classical mechanics might be valid, and also yields information about the possible existence of an “activated complex.”

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