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The A2Δ–X2Π band system of the CD radical

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dc.contributor.author Zachwieja, Mirosław
dc.contributor.author Szajna, Wojciech
dc.contributor.author Hakalla, Rafał
dc.date.accessioned 2014-11-19T09:54:40Z
dc.date.available 2014-11-19T09:54:40Z
dc.date.issued 2012-05
dc.identifier.citation J. Mol. Spectrosc.275, 53-60 (2012) pl_PL.UTF-8
dc.identifier.issn 00222852
dc.identifier.uri http://repozytorium.ur.edu.pl/handle/item/715
dc.description.abstract The A 2Δ-X 2Π, Δv = 0 sequence of the CD radical was observed in the 22 800-24 000 cm -1 spectral region using a conventional spectroscopic technique. The CD molecules were formed and excited in a stainless steel hollow-cathode lamp with two anodes and filled with a mixture of He buffer gas and CD 4. The emission from the discharge was observed with a plane-grating spectrograph and recorded using a photomultiplier tube. The observed lines were assigned to the 0-0, 1-1, 2-2, and 3-3 bands. In total, 1189 transition wavenumbers were precisely measured, with an estimated accuracy of 0.003 cm -1, and rotationally analyzed. In the final global fit, the present data were combined with available high-resolution measurements of the vibration-rotation transitions [Morino et al., J. Mol. Spectrosc. 174 (1995) 123-131] and pure rotational transitions [Brown and Evenson, J. Mol. Spectrosc. 136 (1989) 68-85; Halfen et al., Astrophys. J. 687 (2008) 731-736]. This procedure enabled the extraction of molecular constants for the A 2Δ and X 2Π states of CD. The equilibrium parameters were compared with the calculations performed using the Born-Oppenheimer approximation, and a slight difference was observed in some cases due to the partial breakdown of the B-O approximation. The electronic isotopic shift, Δν e, for the A-X transition was determined to be 32.105cm -1, and the shift independent of the nuclear mass coefficient, ΔU=64.762(38)cm -1, was also calculated. © 2012 Elsevier Inc. pl_PL.UTF-8
dc.language.iso eng pl_PL.UTF-8
dc.publisher Elsevier (Journal of Molecular Spectroscopy) pl_PL.UTF-8
dc.subject A 2Δ - X 2Π transition pl_PL.UTF-8
dc.subject CD radical
dc.subject Electronic spectra
dc.subject Emission spectroscopy
dc.subject Rotational analysis
dc.title The A2Δ–X2Π band system of the CD radical pl_PL.UTF-8
dc.type article pl_PL.UTF-8


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