Conveners
Friday PM: Friday
- Wieland Schöllkopf (Fritz-Haber-Institut)
Cryogenic ion trap vibrational spectroscopy is arguably one of the most powerful and widely applicable structural characterization tools for mass-selected clusters in the gas phase. Combined with the intense and widely tunable radiation from an infrared (IR) free electron laser it allows measuring vibrational spectra over nearly the complete IR spectral range, isomer-specifically, when...
Helium nanodroplets provide an ideal environment for vibrational spectroscopy due to their extremely low equilibrium temperature ($\sim0.4$ K) and minimal matrix-induced spectral perturbation. Whereas the capture of a neutral molecule in a nanodroplet is accomplished using a pickup cham-ber containing analyte vapor, ions can be captured in helium nanodroplets by instead directing a nanodroplet...
Slow electron velocity-map imaging and infrared photodissociation spectroscopy of cryogenically cooled anions are complementary experimental methods that yield vibrationally resolved spectra of complex molecular species. Results from both techniques will be presented, with special emphasis on bare and complexed metal oxide clusters.
Hydrocarbon ions play an important role in combustion and plasma processes, and in the chemistry of planetary atmospheres and the interstellar medium. Laboratory spectroscopic studies of these essential reaction intermediates give valuable insights on their geometrical and electronic structure, and provide accurate transition frequencies needed for their identification in space. Conventional...
The immense structural diversity of carbohydrates enables them to convey key-roles in virtually every biological process. However, this structural diversity, at the same moment, poses a formidable challenge for the analysis. The identification of a complex oligosaccharide typically relies on highly sophisticated mass spectrometry-based techniques, chemical derivatization or, most recently, ion...
