Fragmentation of the PAH cations of Isoviolanthrene and Dicoronylene: A case made for interstellar cyclo [n] carbons as products of universal fragmentation processes
The photo-induced fragmentation pathways of the cationic forms of isoviolanthrene (C 34 H
18) and dicoronylene (C 48 H 20) are systematically studied with mass spectrometry …
18) and dicoronylene (C 48 H 20) are systematically studied with mass spectrometry …
Probing colossal carbon rings
SJP Marlton, JT Buntine, P Watkins, C Liu… - The Journal of …, 2023 - ACS Publications
Carbon aggregates containing between 10 and 30 atoms preferentially arrange themselves
as planar rings. To learn more about this exotic allotrope of carbon, electronic spectra are …
as planar rings. To learn more about this exotic allotrope of carbon, electronic spectra are …
The EDIBLES survey-VII. A survey of C2 and C3 in interstellar clouds
H Fan, CMR Rocha, M Cordiner, H Linnartz… - Astronomy & …, 2024 - aanda.org
Context. Small linear carbon chain radicals such as C 2 and C 3 act as both the building
blocks and dissociation fragments of larger carbonaceous species. Their rotational …
blocks and dissociation fragments of larger carbonaceous species. Their rotational …
Disentangling Electronic Spectra of Linear and Cyclic Hydrogenated Carbon Cluster Cations, C2n+1H+ (n = 3–10)
SJP Marlton, JT Buntine, C Liu, P Watkins… - The Journal of …, 2022 - ACS Publications
Electronic spectra are measured for protonated carbon clusters (C2 n+ 1H+) containing
between 7 and 21 carbon atoms. Linear and cyclic C2 n+ 1H+ isomers are separated and …
between 7 and 21 carbon atoms. Linear and cyclic C2 n+ 1H+ isomers are separated and …
New light on the imbroglio surrounding the C 8 H+ 6 isomers formed from ionized azulene and naphthalene using ion–molecule reactions
Most polycyclic aromatic hydrocarbons (PAHs) can isomerize with internal energies near to
or below the dissociation threshold. The C10H+ 8 group of ions, made up of the …
or below the dissociation threshold. The C10H+ 8 group of ions, made up of the …
Photoprocessing of cationic triazacoronene: dissociation characteristics of polycyclic aromatic nitrogen heterocycles in interstellar environments
Polycyclic aromatic nitrogen heterocycles (PANHs) are present in various astronomical
environments where they are subjected to intense radiation. Their photodissociation …
environments where they are subjected to intense radiation. Their photodissociation …
Extended correlations between diffuse interstellar bands
A Omont - Astronomy & Astrophysics, 2024 - aanda.org
The systematic analysis of the correlations between diffuse interstellar bands (DIBs) is
extended to weak DIBs through the comprehensive catalogue of the Apache Peak …
extended to weak DIBs through the comprehensive catalogue of the Apache Peak …
Impact Ionization Mass Spectra of Polypyrrole-Coated Anthracene Microparticles: A Useful Mimic for Cosmic Polycyclic Aromatic Hydrocarbon Dust
R Mikula, Z Sternovsky, SP Armes, E Ayari… - ACS Earth and Space …, 2024 - ACS Publications
Polycyclic aromatic hydrocarbons (PAHs) are abundantly present in the interstellar medium
and in our solar system and lock up a significant fraction of cosmic carbon. They are found to …
and in our solar system and lock up a significant fraction of cosmic carbon. They are found to …
Laser-induced fragmentation of coronene cations
Polycyclic aromatic hydrocarbons are an important component of the interstellar medium of
galaxies and photochemistry plays a key role in the evolution of these species in space …
galaxies and photochemistry plays a key role in the evolution of these species in space …
Photofragmentation of corannulene (C 20 H 10) and sumanene (C 21 H 12) cations in the gas phase and their astrophysical implications
Aromatic infrared bands (AIBs) dominate the mid-infrared spectra of many galactic and
extragalactic sources. These AIBs are generally attributed to fluorescence emission from …
extragalactic sources. These AIBs are generally attributed to fluorescence emission from …