To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

During the dawn of chemistry,, when the temperature of the young Universe had fallen
below some 4,000 kelvin, the ions of the light elements produced in Big Bang …

Molecular ions have long been considered key intermediates in the evolution of molecular
complexity in the interstellar medium. However, owing to their reactivity and transient nature …

Cationic species with noble gas (Ng)-hydrogen bonds play a major role in the gas-phase ion
chemistry of the group 18 elements. These species first emerged more than 90 years ago …

A new formalism for the accurate treatment of adiabatic effects in the hydrogen molecule is
presented, in which the electronic wave function is expanded in the James-Coolidge basis …

Combination of a cryogenic ion-trap machine, operated at 4.7 K, with the free-electron-laser
FELIX allows the first experimental characterization of the unusually bright antisymmetric …

Using two different action spectroscopic techniques, a high-resolution quantum cascade
laser operating around 1300 cm− 1 and a cryogenic ion trap machine, the proton shuttle …

Theoretical–computational studies together with recent astronomical observations have
shown that under extreme conditions in the interstellar medium (ISM), complexes of noble …

The structures and the vibrational dynamics of the complexes HHe n+ are investigated
experimentally (via mass spectrometry (MS)) and at high levels of electronic-structure theory …

A sensitive high-resolution sub-Doppler detecting spectrometer, based on noise-immune
cavity-enhanced optical heterodyne molecular spectrometry (NICE-OHMS), for trace gas …