Rotational action spectroscopy is an experimental method in which rotational spectra of
molecules, typically in the microwave to sub-mm-wave domain of the electromagnetic …

Gas phase electronic spectra of pure carbon cations generated by laser vaporization of
graphite in a supersonic jet and cooled to below 10 K and tagged with helium atoms in a …

Electronic spectra are measured for mass-selected C 2 n+(n= 6–14) clusters over the visible
and near-infrared spectral range through resonance enhanced photodissociation of clusters …

Infrared and electronic spectra are indispensable for understanding the structural and
energetic properties of charged molecules and clusters in the gas phase. However, the …

The advent of ion traps as cooling devices has revolutionized ion spectroscopy as it is now
possible to efficiently cool ions vibrationally and rotationally to levels where truly high …

The adsorption of up to∼ 100 helium atoms on cations of the planar polycyclic aromatic
hydrocarbons (PAHs) anthracene, phenanthrene, fluoranthene, and pyrene was studied by …

Highly unsaturated carbon chains are generated in combustion processes and electrical
discharges, and are confirmed constituents of the interstellar medium. In hydrogen-rich …

A new electronic transition is reported for the linear C 6+ cation with an origin at 416.8 nm.
This spectrum can be compared to the matrix isolation spectra at lower energies reported …

The detection of molecules in the interstellar medium relies on the comparison between
observational and laboratory data recorded under relevant conditions. In this contribution …

The 2 Π g← X 2 Σ u+ electronic spectrum of C 5+ in the gas-phase with origin band at 513
nm is reported following experiments in a cryogenic ion trap** instrument. Buffer gas …