New magnetic dipole transition of the oxygen molecule: Bʹ³Πg←X ³Σg⁻(0,0)
Date
2002-04-01
Authors
Roberts, E. H.
Nixon, K. L.
Dedman, C. J.
Gibson, S. T.
Lewis, B. R.
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics (AIP)
Abstract
Through the use of isotopically pure gas at a temperature of 77 K, a weak photoabsorption band of ¹⁶O₂ is found near 1856 Å, underlying the stronger Schumann–Runge (SR) band B³Σ−u←X³Σ−g(8,0). The location, structure, and intensity of this new band are consistent with expectation for the magnetic dipole transitionB′ ³Πg←X³Σ−g(0,0), where the designation B′ is chosen to represent the II ³Πg valence state. This electronic transition contributes to the “excess absorption” underlying the SR bands [B. R. Lewis, S. T. Gibson, and E. H. Roberts, J. Chem. Phys. 115, 245 (2001)].
Description
Keywords
Keywords: Electron transitions; Electrostatics; Light absorption; Molecular structure; Monochromators; Oxygen; Photomultipliers; Photons; Potential energy; Ultraviolet radiation; Diatomic molecules; Magnetic dipole transitions; Band structure
Citation
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Source
The Journal of Chemical Physics
Type
Journal article