Protons and hydroxide ions in aqueous systems

N Agmon, HJ Bakker, RK Campen… - Chemical …, 2016 - ACS Publications
Understanding the structure and dynamics of water's constituent ions, proton and hydroxide,
has been a subject of numerous experimental and theoretical studies over the last century …

Towards complete assignment of the infrared spectrum of the protonated water cluster H+(H2O)21

J Liu, J Yang, XC Zeng, SS Xantheas, K Yagi… - Nature …, 2021 - nature.com
The spectroscopic features of protonated water species in dilute acid solutions have been
long sought after for understanding the microscopic behavior of the proton in water with gas …

Cryogenic ion trap vibrational spectroscopy of hydrogen-bonded clusters relevant to atmospheric chemistry

N Heine, KR Asmis - International Reviews in Physical Chemistry, 2015 - Taylor & Francis
Recent advances in the gas phase vibrational spectroscopy of mass-selected ions are
described, highlighting experiments on hydrogen-bonded (HBed) clusters relevant to …

Magic numbers and stabilities of photoionized water clusters: Computational and experimental characterization of the nanosolvated hydronium ion

CJ Mackie, W Lu, J Liang, O Kostko… - The Journal of …, 2023 - ACS Publications
The stability and distributions of small water clusters generated in a supersonic beam
expansion are interrogated by tunable vacuum ultraviolet (VUV) radiation generated at a …

Intra-cluster Charge Migration upon Hydration of Protonated Formic Acid Revealed by Anharmonic Analysis of Cold Ion Vibrational Spectra

T Khuu, T Schleif, A Mohamed, S Mitra… - The Journal of …, 2023 - ACS Publications
The rates of many chemical reactions are accelerated when carried out in micron-sized
droplets, but the molecular origin of the rate acceleration remains unclear. One example is …

Spectral signatures of excess-proton waiting and transfer-path dynamics in aqueous hydrochloric acid solutions

FN Brünig, M Rammler, EM Adams, M Havenith… - Nature …, 2022 - nature.com
The theoretical basis for linking spectral signatures of hydrated excess protons with
microscopic proton-transfer mechanisms has so far relied on normal-mode analysis. We …

[HTML][HTML] IR spectral assignments for the hydrated excess proton in liquid water

R Biswas, W Carpenter, JA Fournier, GA Voth… - The Journal of …, 2017 - pubs.aip.org
The local environmental sensitivity of infrared (IR) spectroscopy to a hydrogen-bonding
structure makes it a powerful tool for investigating the structure and dynamics of excess …

Structure and spectroscopy of hydrated sodium ions at different temperatures and the cluster stability rules

JJ Fifen, N Agmon - Journal of chemical theory and computation, 2016 - ACS Publications
The sodium cation plays an important role in several physiological processes.
Understanding its solvation may help understanding ion selectivity in sodium channels that …

Gas phase vibrational spectroscopy of the protonated water pentamer: the role of isomers and nuclear quantum effects

MR Fagiani, H Knorke, TK Esser, N Heine… - Physical Chemistry …, 2016 - pubs.rsc.org
We use cryogenic ion trap vibrational spectroscopy to study the structure of the protonated
water pentamer, H+ (H2O) 5, and its fully deuterated isotopologue, D+ (D2O) 5, over nearly …

Global and local minima of protonated acetonitrile clusters

A Malloum, J Conradie - New Journal of Chemistry, 2020 - pubs.rsc.org
Understanding the proton transfer processes in acetonitrile is subjected to the knowledge of
the structures of protonated acetonitrile clusters, H+ (MeCN) n. Despite their importance …