This analysis uncovers the 19th century origins of reaction mechanisms, suggesting improvements on electronic theories.
Unravelling reaction mechanisms is thought to be a 20th century phenomenon, coincident more or less with the development of electronic theories of chemistry. Hence electronic arrow pushing as a term. But here I argue that the true origin of this immensely powerful technique in chemistry goes back to the 19th century.
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Henry S. Rzepa (2010) studied this question.
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