Ion mobility spectrometric investigation of aromatic cations in the gas phase

The Journal of Physical Chemistry. a
T BeitzBernd Kallies

Abstract

In this work, ion mobility (IM) spectra of more than 50 aromatic compounds were recorded with a laser-based IM spectrometer at atmospheric pressure. IM spectra of PAH in the laser desorption experiment show a high complexity resulting from the occurrence of monomeric, dimeric, and oligomeric cluster ions. The mobilities of all compounds were determined in helium as drift gas. This allows the calculation of the diffusion cross sections (Omega(calc)) on the basis of the exact hard sphere scattering model and their comparison with the experimentally determined diffusion cross sections (Omega(exp)). Extended Omega(exp)/Omega(calc) and Omega(exp)/mass correlations were performed in order to gain insight into conformational properties of cationic alkyl benzenes and internal rotation of phenyl rings in aromatic ions. This is demonstrated with some examples, such as the evaluation of the dihedral angle of the ions of 9,10-diphenylanthracene, o- and m-terphenyl, and 1,2,3- and 1,3,5-triphenylbenzene. Furthermore, sandwich and T-structures of dimeric PAH cations are discussed. The analysis was extended to oligomeric ions with up to nine monomer units. Experimental evidence is presented suggesting the formation of pi-stacks with a transit...Continue Reading

References

Jul 25, 2000·Analytical Chemistry·C S CreaserJ W Stygall
Apr 10, 2002·Analytical and Bioanalytical Chemistry·D C Collins, M L Lee
Jan 18, 2003·Angewandte Chemie·Jae Kyu SongSeong Keun Kim
Mar 20, 2003·Angewandte Chemie·Emmanuel A MeyerFrançois Diederich
Sep 25, 2003·Journal of the American Chemical Society·Mark J RusyniakM Samy El-Shall
Jul 13, 2006·The Journal of Physical Chemistry. a·M RapacioliD J Wales

❮ Previous
Next ❯

Citations

Jan 15, 2013·Analytical and Bioanalytical Chemistry·C BrendlerH-G Löhmannsröben
Sep 13, 2013·Journal of the American Society for Mass Spectrometry·Hui OuyangChristopher J Hogan
Jul 6, 2014·Journal of the American Society for Mass Spectrometry·Paul V JohnsonJ L Beauchamp
Oct 27, 2015·The Journal of Physical Chemistry. a·Ina D KellnerThomas Drewello
Jan 28, 2010·Analytica Chimica Acta·Frédéric Aubriet, Vincent Carré
Aug 11, 2020·The Journal of Chemical Physics·Sébastien ZamithChristine Joblin
Nov 20, 2019·Analytical and Bioanalytical Chemistry·Aleksandra Michalik-OnichimowskaJens Riedel
Nov 24, 2019·The Journal of Chemical Physics·Sébastien ZamithFernand Spiegelman
Dec 31, 2009·The Journal of Physical Chemistry. B·Chi-Kit SiuK W Michael Siu
Feb 4, 2010·Analytical Chemistry·Bradley B SchneiderErkinjon G Nazarov
Oct 8, 2019·The Journal of Physical Chemistry. a·Léo DontotMathias Rapacioli
Dec 31, 2016·Analytical Chemistry·Jody C MayJohn A McLean

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.