Vibrational branching ratios in photoionization of CO and N2 | Zendy

G. J. Rathbone | Zendy; Ramchandra Rao | Zendy; E. D. Poliakoff | Zendy; Kwanghsi Wang | Zendy; Vincent McKoy | Zendy

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Vibrational branching ratios in photoionization of CO and N2

Author(s) -

G. J. Rathbone,

Ramchandra Rao,

E. D. Poliakoff,

Kwanghsi Wang,

Vincent McKoy

Publication year - 2003

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.1631818

Subject(s) - photoionization , branching (polymer chemistry) , branching fraction , atomic physics , shape resonance , scattering , chemistry , molecule , resonance (particle physics) , physics , ionization , ion , optics , organic chemistry

We report results of experimental and theoretical studies of the vibrational branching ratios for CO 4sigma(-1) photoionization from 20 to 185 eV. Comparison with results for the 2sigma(u)(-1) channel of the isoelectronic N2 molecule shows the branching ratios for these two systems to be qualitatively different due to the underlying scattering dynamics: CO has a shape resonance at low energy but lacks a Cooper minimum at higher energies whereas the situation is reversed for N2.

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