Mark Johnson

Mark Johnson is the Arthur T. Kemp Professor of Chemistry at Yale University, affiliated with the Department of Chemistry. His research focuses on physical chemistry, particularly in the areas of multi-dimensional laser spectroscopy, reaction dynamics, and cryogenic ion chemistry. His work explores complex synthetic pathways, structural characterization of supramolecular systems, and the catalytic transformation of CO2 and H2O into solar fuels. Johnson's research also involves the development of advanced analytical tools for drug discovery and the study of micro-hydration regimes. He is known for integrating bioanalytical methodologies with spectroscopic techniques to investigate transient species in solution. His laboratory has designed custom instruments to address these challenges, and his research often involves collaborations with inorganic and organic synthesis groups. Johnson has been a member of Yale's faculty since 1985 and is recognized for his contributions to the field of physical chemistry.

Mark Johnson is a researcher at Yale University specializing in the spectroscopic investigation of water clusters and their interactions with ions and electrons. His work explores the structural and dynamic properties of hydrated ions, such as OH− and Br−, and their solvation shells. He also studies the behavior of excess electrons in water clusters and the mechanisms of proton transfer in aqueous systems. His research combines cryogenic ion chemistry, vibrational spectroscopy, and quantum mechanics to elucidate the role of water in electron-initiated processes and radical chemistry. Johnson's studies provide insights into the molecular aspects of halide ion hydration and the spectroscopic signatures of ionic hydrogen bonds.