Infrared Multiple Photon Dissociation Action Spectroscopy of Deprotonated DNA Mononucleotides: Gas-Phase Conformations and Energetics

2013 ◽  
Vol 117 (6) ◽  
pp. 1319-1335 ◽  
Author(s):  
Y.-w. Nei ◽  
N. Hallowita ◽  
J. D. Steill ◽  
J. Oomens ◽  
M. T. Rodgers
Keyword(s):  
Gas Phase ◽  
Action Spectroscopy ◽  
Infrared Multiple Photon Dissociation

Infrared Multiple Photon Dissociation Action Spectroscopy of Protonated Unsymmetrical Dimethylhydrazine and Proton-bound Dimers of Hydrazine and Unsymmetrical Dimethylhydrazine

2021 ◽  
Author(s):  
Christopher P. McNary ◽  
Maria Demireva ◽  
Jonathan Martens ◽  
Giel Berden ◽  
Jos Oomens ◽  
...  
Keyword(s):  
Gas Phase ◽  
Action Spectroscopy ◽  
Phase Structures ◽  
Unsymmetrical Dimethylhydrazine ◽  
Infrared Multiple Photon Dissociation

The gas-phase structures of protonated unsymmetrical 1,1-dimethylhydrazine (UDMH) and the proton-bound dimers of UDMH and hydrazine are examined by infrared multiple photon dissociation (IRMPD) action spectroscopy utilizing light generated by...

Infrared Multiple Photon Dissociation Action Spectroscopy of Deprotonated RNA Mononucleotides: Gas-Phase Conformations and Energetics

2013 ◽  
Vol 117 (41) ◽  
pp. 10634-10649 ◽  
Author(s):  
Y.-w. Nei ◽  
K. T. Crampton ◽  
G. Berden ◽  
J. Oomens ◽  
M. T. Rodgers
Keyword(s):  
Gas Phase ◽  
Action Spectroscopy ◽  
Infrared Multiple Photon Dissociation

scholarly journals IR action spectroscopy of glycosaminoglycan oligosaccharides

2019 ◽  
Vol 412 (3) ◽  
pp. 533-537 ◽  
Author(s):  
Maike Lettow ◽  
Márkó Grabarics ◽  
Eike Mucha ◽  
Daniel A. Thomas ◽  
Łukasz Polewski ◽  
...  
Keyword(s):  
Gas Phase ◽  
Structural Diversity ◽  
Monosaccharide Composition ◽  
Great Promise ◽  
Diagnostic Features ◽  
Helium Nanodroplets ◽  
Action Spectroscopy ◽  
Linear Sequence ◽  
Infrared Multiple Photon Dissociation ◽  
Temperature Diagnostic

AbstractGlycosaminoglycans (GAGs) are a physio- and pharmacologically highly relevant class of complex saccharides, possessing a linear sequence and strongly acidic character. Their repetitive linear core makes them seem structurally simple at first glance, yet differences in sulfation and epimerization lead to an enormous structural diversity with only a few GAGs having been successfully characterized to date. Recent infrared action spectroscopic experiments on sulfated mono- and disaccharide ions show great promise. Here, we assess the potential of two types of gas-phase action spectroscopy approaches in the range from 1000 to 1800 cm−1 for the structural analysis of complex GAG oligosaccharides. Synthetic tetra- and pentasaccharides were chosen as model compounds for this benchmark study. Utilizing infrared multiple photon dissociation action spectroscopy at room temperature, diagnostic bands are largely unresolved. In contrast, cryogenic infrared action spectroscopy of ions trapped in helium nanodroplets yields resolved infrared spectra with diagnostic features for monosaccharide composition and sulfation pattern. The analysis of GAGs could therefore significantly benefit from expanding the conventional MS-based toolkit with gas-phase cryogenic IR spectroscopy.

scholarly journals Infrared action spectroscopy of nitrous oxide on cationic gold and cobalt clusters

2021 ◽  
Vol 23 (1) ◽  
pp. 329-338
Author(s):  
Ethan M. Cunningham ◽  
Alice E. Green ◽  
Gabriele Meizyte ◽  
Alexander S. Gentleman ◽  
Peter W. Beardsmore ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Metal Clusters ◽  
Cobalt Clusters ◽  
Action Spectroscopy ◽  
Infrared Multiple Photon Dissociation ◽  
Cationic Gold

Infrared multiple-photon dissociation spectroscopy reveals the nature of nitrous oxide binding to metal clusters.

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