About Our Group:

We design, build and exploit new types of instruments that provide qualitatively new pictures of how chemical reactions occur. By coupling mass-selective vibrational spectroscopy with cryogenic ion processing, we are able to study a wide variety of chemical phenomena, including small molecule activation, gas-liquid interfacial chemistry, and intracluster hydrogen bonding.


August 15, 2017
The Johnson lab attended and presented at various conferences this past summer! Helen and Fabian: Control of London dispersion in molecular chemistry at University of Rostock...
August 15, 2017
The move into KCL 101 is currently in progress. We have moved the Orbitrap, and a new UV-Vis laser system was installed.
June 12, 2017
Mark was pleased to give the Paul C. Cross Lectures at the University of Washington. Paul Cross is well known for his book on molecular vibrations with co-authors Decius and...

Selected Publications:

Spectroscopic Snapshots of the Proton-transfer Mechanism in Water

Capture of CO2 by a Cationic NiI Complex in the Gas Phase and Characterization of the Bound Activated CO2 Molecule through Cryogenic Ion Vibrational Predissociation Spectroscopy

Modes of Activation of Organometallic Iridium Complexes for Catalytic Water and C-H Oxidation

Vibrational spectral signature of the proton defect in the three-dimensional H+(H2O)21 cluster