Nitrogen molecule, energy levels

Nitrogen membrane systems, 27 278-280 Nitrogen molecule, energy levels of,... 

The photoelectron spectrum of nitrogen (N2) has several peaks, a pattern indicating that electrons can be found in several energy levels in the molecule. Each main group of lines corresponds to the energy of a molecular orbital. The additional "fine structure" on some of the groups of lines is due to the excitation of molecular vibration when an electron is expelled. 

The QCT reaction cross sections are first compared with the TCE chemistry model. In Figs. 9(a)-9(c), the reactiop cross sections are shown as a function of translational collision energy at three vibrational energy levels (u = 0, 7, and 13), for rotational levels specified by J = 0, 64, and 126 respectively. While the rotational and vibrational quantum numbers J and V refer to the reacting nitrogen molecule, the translational collision energy is that for the N2-O pair. 

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