Molecular deformation in the O 1s[-1] 2πu excited states of CO2 probed by the triple-differential measurement of fragment ions
PR_2000_A62_e042503.pdf 75.6 KB
Suzuki, I. H.
Measurement of mass-, energy-, and angle-resolved fragment ions reveals that the β value for C+ with kinetic energy ≥~3 eV is ∼0.9 in the region of the O 1s→2πu excitation and that the β value for O+ with kinetic energy ≥~4 eV varies from -0.23 to -0.57 across the O 1s→2πu resonance. These findings postulate that the CO2 molecule excited to the lower branch of the vibronically split O 1s[-1]2πu excited states deforms into a bent geometry while the molecule excited to the higher branch remains in a linear geometry.
Physical review A
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The American Physical Society
Copyright (c) 2000 The American Physical Society
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Graduate School of Science