What are the atomic motions at enzymatic catalytic sites on the timescale of chemical change? Combined experimental and computational chemistry approaches take advantage of transition-state analogs to ...

Transition state theory (TST) provides a simple interpretation of many thermally activated processes. It applies successfully on timescales and length scales that differ several orders of magnitude: ...

A new technique offers a sharp picture of an elusive and ephemeral stage of a chemical’s life. By precisely measuring the energy of a molecule at the instant it morphs from one form to another, ...