Demystifying the diffuse vibrational spectrum of aqueous protons through cold cluster spectroscopy
HJ Zeng, MA Johnson - Annual Review of Physical Chemistry, 2021 - annualreviews.org
The ease with which the pH is routinely determined for aqueous solutions masks the fact that
the cationic product of Arrhenius acid dissolution, the hydrated proton, or H+ (aq), is a …
the cationic product of Arrhenius acid dissolution, the hydrated proton, or H+ (aq), is a …
Spectroscopic Studies of Clusters of Atmospheric Relevance
NC Frederiks, A Hariharan… - Annual Review of …, 2023 - annualreviews.org
Atmospheric aerosols exert a significant but highly uncertain effect on the global climate,
and roughly half of these particles originate as small clusters formed by collisions between …
and roughly half of these particles originate as small clusters formed by collisions between …
Snapshots of proton accommodation at a microscopic water surface: Understanding the vibrational spectral signatures of the charge defect in cryogenically cooled H+ …
JA Fournier, CT Wolke, MA Johnson… - The Journal of …, 2015 - ACS Publications
We review the role that gas-phase, size-selected protonated water clusters, H+ (H2O) n,
have played in unraveling the microscopic mechanics responsible for the spectroscopic …
have played in unraveling the microscopic mechanics responsible for the spectroscopic …
Two-Dimensional Infrared Spectroscopy of Isolated Molecular Ions
Two-dimensional infrared (2D IR) spectroscopy of mass-selected, cryogenically cooled
molecular ions is presented. Nonlinear response pathways, encoded in the time-domain …
molecular ions is presented. Nonlinear response pathways, encoded in the time-domain …
Site-specific vibrational spectral signatures of water molecules in the magic H3O+(H2O)20 and Cs+(H2O)20 clusters
JA Fournier, CT Wolke, CJ Johnson… - Proceedings of the …, 2014 - National Acad Sciences
Theoretical models of proton hydration with tens of water molecules indicate that the excess
proton is embedded on the surface of clathrate-like cage structures with one or two water …
proton is embedded on the surface of clathrate-like cage structures with one or two water …
Capturing intrinsic site-dependent spectral signatures and lifetimes of isolated OH oscillators in extended water networks
N Yang, CH Duong, PJ Kelleher, MA Johnson - Nature Chemistry, 2020 - nature.com
The extremely broad infrared spectrum of water in the OH stretching region is a
manifestation of how profoundly a water molecule is distorted when embedded in its …
manifestation of how profoundly a water molecule is distorted when embedded in its …
Hidden role of intermolecular proton transfer in the anomalously diffuse vibrational spectrum of a trapped hydronium ion
SM Craig, FS Menges, CH Duong… - Proceedings of the …, 2017 - National Acad Sciences
We report the vibrational spectra of the hydronium and methyl-ammonium ions captured in
the C3 v binding pocket of the 18-crown-6 ether ionophore. Although the NH stretching …
the C3 v binding pocket of the 18-crown-6 ether ionophore. Although the NH stretching …
Origins of the diffuse shared proton vibrational signatures in proton-coupled electron transfer model dyad complexes
Phenol-benzimidazole and phenol-pyridine dyad complexes have served as popular model
systems for the study of proton-coupled electron transfer (PCET) kinetics in solution-phase …
systems for the study of proton-coupled electron transfer (PCET) kinetics in solution-phase …
The competition between hydrogen, halogen, and covalent bonding in atmospherically relevant ammonium iodate clusters
NC Frederiks, DD Heaney, JJ Kreinbihl… - Journal of the …, 2023 - ACS Publications
Iodine-containing clusters are expected to be central to new particle formation (NPF) events
in polar and midlatitude coastal regions. Iodine oxoacids and iodine oxides are observed in …
in polar and midlatitude coastal regions. Iodine oxoacids and iodine oxides are observed in …
Structural, Thermodynamic, and Spectroscopic Evolution in the Hydration of Copper(II) Ions, Cu2+(H2O)2−8
EG Christensen, RP Steele - The Journal of Physical Chemistry A, 2023 - ACS Publications
Gas-phase clusters of the hydrated Cu (II) cation with 2–8 water molecules were
investigated using ab initio quantum chemistry. Isomer structures, energies, and vibrational …
investigated using ab initio quantum chemistry. Isomer structures, energies, and vibrational …