Mark A. Johnson

Yale University — United States

Physics and Astronomy · Physical Sciences

71h-index21.3kcitations526works2.42yr avg
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Research Topics

Advanced Chemical Physics Studies(184), Spectroscopy and Quantum Chemical Studies(145), Mass Spectrometry Techniques and Applications(71), GaN-based semiconductor devices and materials(63), Spectroscopy and Laser Applications(60)

Publications526 total

Structural Insight into ESI+-Generated Ions of Oxazolochlorin Derivatives Using Cryogenic Infrared Ion Spectroscopy
Journal of the American Society for Mass Spectrometry·2025
Characterization of Two Positional Isomers of the Cs <sup>+</sup> Gly Complex Using Two-Color, IR–IR Photobleaching of the Cryogenically Cooled Ions
The Journal of Physical Chemistry A·2025
Microcanonical kinetics of water-mediated proton transfer in microhydrated 4-aminobenzoic acid
Science·2025· 1 cited
Cryogenic Ion Kinetics and Thermodynamics in a Temperature-Controlled, Radiofrequency Ion Trap: A Case Study of the “Tag Isomers” Adopted by the Py-CH<sub>2</sub>-COOH<sup>+</sup>·D<sub>2</sub> Cation
The Journal of Physical Chemistry Letters·2025
Dynamics of Protonated Oxalate from Machine-Learned Simulations and Experiment: Infrared Signatures, Proton Transfer Dynamics and Tunneling Splittings
arXiv (Cornell University)·2025Open Access
Isomers and band assignments in the cryogenic vibrational spectrum of the binary complex between water and protonated formic acid using two color, IR–IR photobleaching and H/D isotopic substitution
The Journal of Chemical Physics·2025· 1 cited
The Onset for Vibrationally Induced, Intramolecular Proton Transfer at Three Water Molecules in Microhydrated 4-Aminobenzoic Acid
The Journal of Physical Chemistry Letters·2025· 3 citedOpen Access
Mechanism of a Halogen Exchange Reaction in Water: Catalysis by Aqueous Media
ACS Central Science·2025· 1 citedOpen Access
Dynamics of protonated oxalate from machine-learned simulations and experiment: infrared signatures, proton transfer dynamics and tunneling splittings
Physical Chemistry Chemical Physics·2025· 1 citedOpen Access
Intramolecular Polarization Contributions to the p<i>K</i><sub>a</sub>’s of Carboxylic Acids Through the Chain Length Dependence of Vibrational Tag-Shifts in Cryogenically Cooled Pyridinium-(CH<sub>2</sub>)<sub><i>n</i></sub>-COOH (<i>n</i> = 1–7) Cations
The Journal of Physical Chemistry A·2024· 4 citedOpen Access
Isomer-Specific, Cryogenic Ion Vibrational Spectroscopy Investigation of D<sub>2</sub>- and N<sub>2</sub>-Tagged, Protonated Formic Acid Complexes Using Two-Color, IR-IR Photobleaching
The Journal of Physical Chemistry Letters·2024· 3 citedOpen Access
Demonstration of Capture, Cooling, Tagging, and Spectroscopic Characterization of UV Photoproduct Ions in a Cryogenic Ion Trap: Application to 266 nm Photofragment Ions from Rhodamine 6G
The Journal of Physical Chemistry A·2024· 2 citedOpen Access
Measuring the Electric Fields of Ions Captured in Crown Ethers
The Journal of Physical Chemistry Letters·2024· 8 cited
Authors’ Response to “Evaluating the Impact of Training Duration on Resident Sleep Patterns and Well-Being in Family Medicine”
Family Medicine·2024Open Access
Spectroscopic Evidence for Doubly Hydrogen-Bonded Cationic Dimers in the Solid, Liquid, and Gaseous Phases of Carboxyl-Functionalized Ionic Liquids
The Journal of Physical Chemistry B·2024· 12 cited
A Longitudinal Assessment of Resident and New Graduate Well-Being According to Length of Training: A Report From the Length of Training Pilot in Family Medicine
Family Medicine·2024· 2 citedOpen Access
Hydrogen Tag Shifts as Vibrational Reporters for Positional Isomers of Formylphenides: Surprising Mobility of the Carbanion Center upon Collisional Decarboxylation of the Parent Benzoates
The Journal of Physical Chemistry Letters·2024· 3 cited
Characterization of the Oxazolone and Macrocyclic Motifs in the b<sub><i>n</i></sub> (<i>n</i> = 2–5) Product Ions from Collision-Induced Dissociation of Protonated Oligoglycine Peptides with Isomer-Selective, Cryogenic Vibrational Spectroscopy
Journal of the American Society for Mass Spectrometry·2023· 4 cited
Intra-cluster Charge Migration upon Hydration of Protonated Formic Acid Revealed by Anharmonic Analysis of Cold Ion Vibrational Spectra
The Journal of Physical Chemistry A·2023· 14 cited
A Tribute to Michael R. Berman
The Journal of Physical Chemistry B·2023
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Frequent Co-authors

Patrick Ayotte(9), Kenneth D. Jordan(8), Anne B. McCoy(8), Gary H. Weddle(8), Eric G. Diken(7), Joseph Roscioli(6), Arron B. Wolk(5), Christopher M. Leavitt(5), Jun Kim(5), Michael Z. Kamrath(5), Jeffrey M. Headrick(4), Nathan I. Hammer(4), Joseph A. Fournier(4), Étienne Garand(4), Sotiris S. Xantheas(3), Joong‐Won Shin(3), Conrad T. Wolke(3), Shizυo Fujita(3), W. H. Rowland(3), W. C. Hughes(3)