Physics – Atomic and Molecular Clusters
Scientific paper
2012-01-24
J. Chem. Phys. 135, 244301 (2011)
Physics
Atomic and Molecular Clusters
14 pages, 8 figures, one data archive
Scientific paper
10.1063/1.3672165
The first comprehensive high-resolution photoabsorption spectrum of 14N15N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet (XUV) and span 100,000-109,000 cm-1 (100-91.7 nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies, f values, and linewidths. This analysis has verified the predictions of a theoretical model of N2 that simulates its photoabsorption and photodissociation cross section by solution of an isotopomer independent formulation of the coupled-channel Schroedinger equation. The mass dependence of predissociation linewidths and oscillator strengths is clearly evident and many local perturbations of transition energies, strengths, and widths within individual rotational series have been observed.
Dickenson Gareth D.
Heays Alan N.
Joyeux Denis
Lewis Brenton R.
Nahon Laurent
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