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 …

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 …

Gas phase mid‐infrared spectroscopy of molecular ions can nowadays be performed with
high performance mass spectrometers coupled to free electron lasers (FEL). The wide and …

The ability of Paul and Penning traps to contain ions for time periods ranging from
milliseconds to minutes allows the trapped ions to be subjected to laser irradiation for …

The gas-phase structures of the protonated pentapeptide Leu-enkephalin and its main
collision-induced dissociation (CID) product ions, b 4 and a 4, are investigated by means of …

Determining the structure and dynamics of large biologically relevant molecules is one of the
key challenges facing biology. Although X-ray crystallography (XRD) and nuclear magnetic …

In this article, the new and exciting techniques of infrared consequence spectroscopy
(sometimes called action spectroscopy) of gaseous ions are reviewed. These techniques …

Gas-phase infrared multiple photon dissociation (IRMPD) spectra have been recorded for
the conjugate bases of a series of amino acids (Asp, Cys, Glu, Phe, Ser, Trp, Tyr). The …

Theoretical spectroscopy is mandatory for a precise understanding and assignment of
experimental spectra recorded at finite temperature. We review here room temperature DFT …

Combining laser desorption with a supersonic expansion together with the selectivity of
IR/UV double resonance spectroscopy makes it possible to isolate and characterise the gas …