The A2Δ–X2Π band system of the CD radical
| 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.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.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.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 |