Cells encode information in the sequence of biopolymers, such as nucleic acids, proteins,
and glycans. Although glycans are essential to all living organisms, surprisingly little is …

Isolated transition metal clusters have been established as useful models for extended metal
surfaces or deposited metal particles, to improve the understanding of their surface …

Large polycyclic aromatic hydrocarbon (PAH) molecules carry the infrared (IR) emission
features that dominate the spectra of most galactic and extragalactic sources. This review …

In this review, we present an overview of our recent work on the infrared spectroscopy of
mass-selected gas-phase molecular ions. The ions are stored and isolated in a quadrupole …

We report on modifications made to a Paul-type quadrupole ion trap mass spectrometer and
discuss its application in infrared ion spectroscopy experiments. Main modifications involve …

The low density of ions in mass spectrometers generally precludes direct infrared (IR)
absorption measurements. The IR spectrum of an ion can nonetheless be obtained by …

The astronomical emission features, formerly known as the unidentified infrared bands, are
now commonly ascribed to polycyclic aromatic hydrocarbons (PAHs). The laboratory …

The physical and chemical processes leading to the formation of molecules in the interstellar
medium (ISM) sthe vast voids between the starssfascinated scientists since the first detection …

The protonated water dimer is a prototypical system for the study of proton transfer in
aqueous solution. We report infrared photodissociation spectra of cooled H+ (H2O) 2 [and …

Recent advances in the gas phase vibrational spectroscopy of mass-selected ions are
described, highlighting experiments on hydrogen-bonded (HBed) clusters relevant to …