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 …

There is a real need for new antibiotics against self‐evolving bacteria. One option is to use
biofriendly broad‐spectrum and mechanically tunable antimicrobial hydrogels that can …

The Lewis concept of acids and bases is discussed in every general, organic and inorganic
chemistry textbook. This is usually just a descriptive treatment, as it is not possible to devise …

Combined IR and UV laser spectroscopic techniques in molecular beams merged with
theoretical approaches have proven to be an ideal tool to elucidate intrinsic structural …

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 …

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 …

We present infrared photodissociation spectra of two protonated peptides that are cooled in
a∼ 10 K quadrupole ion trap and “tagged” with weakly bound H2 molecules. Spectra are …

The gas-phase structures of protonated and alkali metal cationized arginine (Arg) and
arginine methyl ester (ArgOMe) are investigated with infrared spectroscopy and ab initio …