Experimental investigation of radiative lifetimes of vibrational levels at the electronic ground state of C2
作者： H. B. Pedersen , C. Brink , L. H. Andersen , N. Bjerre , P. Hvelplund
DOI: 10.1063/1.477207
关键词:
摘要: Radiative lifetimes of the vibrational levels v=2 to v=4 X 2Σg+ ground state C2− molecular ion have been experimentally investigated by photodetachment in a storage ring. The lifetime v=3 level was 0.32±0.02 s for 12C12C−, and 0.22±0.02 s 12C13C−. For both ions, lower limit 5 s, upper ∼100 ms. measured 12C12C− is factor 4 smaller than found calculation [P. Rosmus H. Werner, J. Chem. Phys. 80, 5085 (1984)]. results point existence at least one bound lowest 4Σu+ state.
harvard.edu
scitation.org
aip.org
sci-hub.se 参考文章(42)
L.H. Andersen, T. Andersen, P. Hvelplund, Studies Of Negative Ions In Storage Rings Advances in Atomic Molecular and Optical Physics. ,vol. 38, ,(1998) , 10.1016/S1049-250X(08)60052-X
L. R. Brock, Eric A. Rohlfing, Spectroscopic studies of the B̃ 2A′′-X̃ 2A′′ system of the jet-cooled vinoxy radical Journal of Chemical Physics. ,vol. 106, pp. 10048- 10065 ,(1997) , 10.1063/1.474091
Richard E. Honig, MASS SPECTROMETRIC STUDY OF THE MOLECULAR SUBLIMATION OF GRAPHITE Journal of Chemical Physics. ,vol. 22, pp. 126- 131 ,(1954) , 10.1063/1.1739819
J. W. T. Spinks, Gerhard Herzberg, Spectra of diatomic molecules Van Nostrand Reinhold. ,(1950)
John D. Watts, Rodney J. Bartlett, Coupled‐cluster calculations on the C2 molecule and the C+2 and C−2 molecular ions Journal of Chemical Physics. ,vol. 96, pp. 6073- 6084 ,(1992) , 10.1063/1.462649
U. Happek, J.R. Engholm, A.J. Sievers, Frequency and temperature dependence of the vibrational relaxation of the SH stretch mode in vitreous As2S3 Chemical Physics Letters. ,vol. 221, pp. 279- 282 ,(1994) , 10.1016/0009-2614(94)00263-0
M. Okumura, L. I. Yeh, D. Normand, J. J. H. van den Biesen, S. W. Bustamente, Y. T. Lee, Timothy J. Lee, Nicholas C. Handy, Henry F. Schaefer, Radiative decay lifetimes of CH−2 Journal of Chemical Physics. ,vol. 86, pp. 3807- 3815 ,(1987) , 10.1063/1.451939
Dolphus E. Milligan, Marilyn E. Jacox, Luce Abouaf‐Marguin, Vacuum‐Ultraviolet Photolysis of Acetylene in Inert Matrices. Spectroscopic Study of the Species C2 The Journal of Chemical Physics. ,vol. 46, pp. 4562- 4570 ,(1967) , 10.1063/1.1840602
P. Tykesson, H. H. Andersen, J. Heinemeier, Further Investigations of ANIS (The Aarhus Negative Ion Source) IEEE Transactions on Nuclear Science. ,vol. 23, pp. 1104- 1108 ,(1976) , 10.1109/TNS.1976.4328414
J Barsuhn, Nonempirical calculations on the electronic spectrum of the molecular ion C2 Journal of Physics B. ,vol. 7, pp. 155- 162 ,(1974) , 10.1088/0022-3700/7/1/025