Laser-induced fluorescence of matrix-isolated C4N+2

Autor:	Jürgen Agreiter, Martin Härtle, Vladimir E. Bondybey, Alice M. Smith
Rok vydání:	1994
Předmět:	Overtone General Physics and Astronomy chemistry.chemical_element Laser law.invention Neon chemistry law Molecular vibration Emission spectrum Physical and Theoretical Chemistry Atomic physics Laser-induced fluorescence Ground state Excitation
Zdroj:	Chemical Physics Letters. 225:87-96
ISSN:	0009-2614
DOI:	10.1016/0009-2614(94)00597-4
Popis:	C 4 N + 2 (NCCCCN + ) is produced in a self-igniting dc discharge from the neutral precursor seeded in neon and matrix-isolated at 5.5 K. From Fourier-transform absorption, laser excitation and emission spectra of the cation's A 2 Π g ↔ X 2 Π u transition the three symmetric Σ g vibrational modes were obtained for both states involved and are compared with the corresponding gas-phase values. Additional emission bands are assigned to combination and overtone bands involving the asymmetric stretches and two bending vibrations of the ground state. Subsidiary emission/absorption bands are interpreted as the forbiden ΔΩ = ± 1 transitions which become allowed due to perturbations by the surrounding matrix.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::711cb54eb1a20abc65d92d2bfbc4c621 https://doi.org/10.1016/0009-2614(94)00597-4 Zobrazit plný text záznamu