Evaluation of data for atmospheric models: Master Equation/RRKM calculations on the combination reaction ClO + NO2 → ClONO2 , a recurring issue

A Free Radical Cyclization Catalyzed by Ruthenium Hydride Species

A photolytically generated ruthenium hydride species catalyzing a free radical cyclization reaction was developed. As the new methodology ensures reproducibility of the free radical reaction of trialkyltin hydrides and a fast hydrogen transfer to the radical intermediates, the methodology provides fast quenching of radical intermediates and thus suppresses rearrangement of radical intermediates before the hydride quench. By offering new reactivity and selectivity to the trialkyltin hydride mediated free radical cyclization reactions, the methodology will find wide range of applications in organic synthesis.

Unimolecular reaction chemistry of a charge-tagged beta-hydroxyperoxyl radical

The study of unimolecular isomerization and decomposition of a charge-tagged β-hydroxyperoxyl radical anion ˙CH₂C(OH)(CH₃)CH₂C(O)O⁻ using mass spectrometry, quantum mechanical calculations and master equation kinetic simulations.