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.


The group at the top of the mountain
March 14, 2019
The group enjoyed a wonderful time skiing in Stratton, Vermont this year!
February 25, 2019
The Johnson Lab had a great time at the Gaseous Ions GRS and GRC in Ventura, CA last week. Nan gave talks at both the GRS and GRC (hot topic) with the title “Spying on the...
February 6, 2019
The group hosted a great two week visit from Einar Uggerud and students Sverre Løyland and Joakim Jestilä. They brought with them two very interesting, and challenging...

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