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Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule

Triplet excited states of the N(2) molecule play an important role in electric discharges through air or liquid nitrogen accompanied by various afterglows. In the rarefied upper atmosphere, they produce aurora borealis and participate in other energy-transfer processes connected with atmospheric pho...

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Autores principales: Minaev, B. F, Panchenko, O. O, Minaeva, V. A, Ågren, H
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9623019/
https://www.ncbi.nlm.nih.gov/pubmed/36329857
http://dx.doi.org/10.3389/fchem.2022.1005684
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author Minaev, B. F
Panchenko, O. O
Minaeva, V. A
Ågren, H
author_facet Minaev, B. F
Panchenko, O. O
Minaeva, V. A
Ågren, H
author_sort Minaev, B. F
collection PubMed
description Triplet excited states of the N(2) molecule play an important role in electric discharges through air or liquid nitrogen accompanied by various afterglows. In the rarefied upper atmosphere, they produce aurora borealis and participate in other energy-transfer processes connected with atmospheric photochemistry and nightglow. In this work, we present spin–orbit coupling calculations of the intensity of various forbidden transitions, including the prediction of the electric dipole transition moment of the new [Formula: see text] band, which is strongly prohibited by the (+|−) selection rule, the new spin-induced magnetic [Formula: see text] transition, magnetic and electric quadrupole transitions for the B(3)Π(g) [Formula: see text] Wilkinson band, and the Lyman–Birge–Hopfield a(1)Π(g) ← X(1)Σ(g) transition. Also, two other far-UV singlet–singlet quadrupole transitions are calculated for the first time, namely, the Dressler–Lutz a"(1)Σ(g) (+)–X(1)Σ(g) (+) and the less studied z(1)Δ(g)–X(1)Σ(g) (+) weak transitions.
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spelling pubmed-96230192022-11-02 Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule Minaev, B. F Panchenko, O. O Minaeva, V. A Ågren, H Front Chem Chemistry Triplet excited states of the N(2) molecule play an important role in electric discharges through air or liquid nitrogen accompanied by various afterglows. In the rarefied upper atmosphere, they produce aurora borealis and participate in other energy-transfer processes connected with atmospheric photochemistry and nightglow. In this work, we present spin–orbit coupling calculations of the intensity of various forbidden transitions, including the prediction of the electric dipole transition moment of the new [Formula: see text] band, which is strongly prohibited by the (+|−) selection rule, the new spin-induced magnetic [Formula: see text] transition, magnetic and electric quadrupole transitions for the B(3)Π(g) [Formula: see text] Wilkinson band, and the Lyman–Birge–Hopfield a(1)Π(g) ← X(1)Σ(g) transition. Also, two other far-UV singlet–singlet quadrupole transitions are calculated for the first time, namely, the Dressler–Lutz a"(1)Σ(g) (+)–X(1)Σ(g) (+) and the less studied z(1)Δ(g)–X(1)Σ(g) (+) weak transitions. Frontiers Media S.A. 2022-10-18 /pmc/articles/PMC9623019/ /pubmed/36329857 http://dx.doi.org/10.3389/fchem.2022.1005684 Text en Copyright © 2022 Minaev, Panchenko, Minaeva and Ågren. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Minaev, B. F
Panchenko, O. O
Minaeva, V. A
Ågren, H
Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title_full Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title_fullStr Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title_full_unstemmed Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title_short Triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
title_sort triplet state harvesting and search for forbidden transition intensity in the nitrogen molecule
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9623019/
https://www.ncbi.nlm.nih.gov/pubmed/36329857
http://dx.doi.org/10.3389/fchem.2022.1005684
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