dc.creator Colbourn, E. A. en_US dc.creator Dagenais, M. en_US dc.creator Douglas, A. E. en_US dc.creator Raymonda, J. W. en_US dc.date.accessioned 2006-06-15T13:38:57Z dc.date.available 2006-06-15T13:38:57Z dc.date.issued 1975 en_US dc.identifier 1975-RF-04 en_US dc.identifier.uri http://hdl.handle.net/1811/9357 dc.description Author Institution: Division of Physics, National Research Council of Canada en_US dc.description.abstract The absorption spectrum of $F_{2}$ in the vacuum ultraviolet region has been photographed at a sufficiently high resolution to permit the rotational analysis of many bands. The lowest state observed is a $^{1}\Sigma^{+}_{u}$ valence state which gives a large number of perturbed bands in the 1000 {\AA} region. The spectrum of F$_{2}$ at liquid nitrogen temperature shows many weak bands of a second band system in the same region which also appears to be a $^{1}\Sigma^{+}_{u}$-X$^{1}\Sigma^{+}_{g}$ system. The upper state vibrational levels of this weak system have B values in the 0.18 cm$^{-1}$ range and it can be shown that they are responsible for most of perturbations in the stronger system. The problems in assigning the excited states will be discussed. Many bands of the strong $^{1}\Sigma^{+}_{u}$-X$^{1}\Sigma^{+}_{g}$ system have been observed in emission in the 1100 {\AA} region. An analysis of these emission bands has allowed us to determine the energies and B values of 23 vibrational levels of the ground electronic state. The RKR potential curve of the ground state and an improved value of the dissociation energy have been determined. en_US dc.format.extent 128235 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE ELECTRONIC SPECTRUM OF $F_{2}$ en_US dc.type article en_US
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