31 citations · 183 across the 18 of their papers we have counts for
18 papers
Hyperfine-Resolved Rovibrational and Rotational Spectroscopy of OH ()
Weslley G. D. P. Silva, Lea Schneider, Urs U. Graf +6
The OH () radical cation has been investigated by combining a 4 K 22-pole ion trap apparatus with high-resolution IR and THz radiation sources. Applying different type…
High-resolution ro-vibrational and rotational spectroscopy of the open-shell, linear CCH ion ()
Kim Steenbakkers, Weslley G. D. P. Silva, Oskar Asvany +5
In this work, we report on the high-resolution infrared spectrum of CCH () recorded in the range ~cm by means of leak-out spectroscopy. This spectral ran…
Broadband infrared spectroscopy of methanol isotopologues in pure, H2O-rich, and CO-rich ice analogues
Adam Vyjidak, Barbara Michela Giuliano, Pavol Jusko +5
Deuterium fractionation is highly efficient during the early stages of star formation, particularly in starless and prestellar cores where temperatures are low (<10 K) and molecula…
High Resolution Overtone Spectroscopy of HNC and HCN
Miguel Jiménez-Redondo, Chiara Schleif, Julianna Palotás +5
Rotationally resolved spectra of the HNC and HCN molecular ions have been recorded in the spectral range between 6200 and 6800 \rcm\ using a cryogenic ion trap instrument.…
Near-infrared high resolution overtone spectroscopy of the hydronium ion HO: the and bands
Chiara Schleif, Hayley A. Bunn, Miguel Jiménez-Redondo +2
This work presents the rovibrational spectra of the two strongest first overtone bands of the asymmetric stretching mode ( and ) of the hydronium ion, H…
Infrared Spectroscopy of Pentagon-Containing PAHs: Indenyl and Fluorenyl Anions and Indenyl Cation
Gabi Wenzel, Miguel Jiménez-Redondo, Milan Ončák +4
Polycyclic aromatic hydrocarbon (PAH) ions are crucial intermediates in interstellar chemistry and may play a key role in the infrared emission features observed in space. Here, we…
Rovibrational Overtone and Combination Bands of the HCNH+ Ion
Miroslava Kassayová, Miguel Jiménez-Redondo, János Sarka +4
Spectra of vibrational overtone and combination bands from vibrational ground state of HCNH+ were measured using an action spectroscopy technique with active background suppression…
Cl+ and HCl+ in Reaction with H2 and Isotopologues: A Glance into H Abstraction and Indirect Exchange at Astrophysical Conditions
Miguel Jiménez-Redondo, Olli Sipilä, Robin Dahl +2
Astrochemical models of interstellar clouds, the sites of stars, and planet formation require information about spin-state chemistry to allow quantitative comparison with spectrosc…
Ion-kinetic-energy sampling in a 22-pole trap using ring-electrode evaporation
Miguel Jiménez-Redondo, Dieter Gerlich, Paola Caselli +1
We present an experimental method for the characterization of the kinetic energies of ions confined in a 22-pole radio frequency trap by inducing a small potential barrier using th…
Measurements and simulations of rate coefficients for the deuterated forms of the H2 + + H2 and H3 + + H2 reactive systems at low temperature
Miguel Jiménez-Redondo, Olli Sipilä, Pavol Jusko +1
The rate coefficients of various isotopic variations of the H2+ + H2 and H3+ + H2 reactions in the 10-250 K temperature range were measured using a cryogenic 22 pole radio frequenc…
Overtone Transition of and : Origin, Radiative Lifetime, Collisional Quenching
Miguel Jiménez-Redondo, Liliia Uvarova, Petr Dohnal +3
We present spectra of the first overtone vibration transition of / stretch () in and , recorded using a laser induced rea…
Measurements of rate coefficients of CN, HCN and HNC collisions with H at cryogenic temperatures
Petr Dohnal, Pavol Jusko, Miguel Jiménez-Redondo +1
The experimental determination of the reaction rate coefficients for production and destruction of and in collisions with is presented. A…
Cold CAS Ion Trap -- 22 pole trap with ring electrodes for astrochemistry
Pavol Jusko, Miguel Jiménez-Redondo, Paola Caselli
The enhancement of a cryogenic radio frequency 22 pole trap instrument by the addition of ring electrodes is presented in detail. The ring electrodes tightly surround the poles and…
Infrared action spectroscopy of doubly charged PAHs and their contribution to the aromatic infrared bands
Shreyak Banhatti, Julianna Palotás, Pavol Jusko +4
The so-called aromatic infrared bands are attributed to emission of polycyclic aromatic hydrocarbons. The observed variations toward different regions in space are believed to be c…
Descendant of the X-ogen carrier and a "mass of 69": Infrared action spectroscopic detection of HCO and HCS
S. Thorwirth, M. E. Harding, O. Asvany +6
The carbon chain ions HCO and HCS - longer variants of the famous "X-ogen" line carrier HCO - have been observed for the first time using two cryogenic 22-pole…
Direct Evidence of the Benzylium and Tropylium Cations as the two long-lived Isomers of C7H7+
Pavol Jusko, Aude Simon, Shreyak Banhatti +2
Disentangling the isomeric structure of C7H7+ is a longstanding experimental issue. We report here the full mid-infrared vibrational spectrum of C7H7+ tagged with Ne obtained with…
First laboratory detection of vibration-rotation transitions of CH and CH and improved measurement of their rotational transition frequencies
José L. Doménech, Pavol Jusko, Stephan Schlemmer +1
The long-searched C-H stretches of the fundamental ions CH and CH have been observed for the first time in the laboratory. For this, the state-dependent attachment o…
Identification of the fragment of the 1-methylpyrene cation by mid-IR spectroscopy
Pavol Jusko, Aude Simon, Gabi Wenzel +3
The fragment of the 1-methylpyrene cation, C17H11+, is expected to exist in two isomeric forms, 1-pyrenemethylium PyrCH2+ and the tropylium containing species PyrC7+ . We measured…