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Vibronic coupling and core-hole localization in K-shell excitations of ethylene

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Randall,  K. J.
Fritz Haber Institute, Max Planck Society;

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Bradshaw,  Alexander M.
Fritz Haber Institute, Max Planck Society;

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PhysRevLett.66.883.pdf
(Publisher version), 178KB

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Citation

Gadea, F. X., Köppel, H., Schirmer, J., Cederbaum, L. S., Randall, K. J., Bradshaw, A. M., et al. (1991). Vibronic coupling and core-hole localization in K-shell excitations of ethylene. Physical Review Letters, 66(7), 883-886. doi:10.1103/PhysRevLett.66.883.


Cite as: https://hdl.handle.net/21.11116/0000-0009-F5C8-1
Abstract
A new high-resolution measurement of the C 1s near-edge photoabsorption spectrum of the ethylene molecule is reported. An analysis of the vibrational structure in the C 1s-π* band indicates strong excitation of non-totally-symmetry modes and the importance of vibronic coupling. The latter phenomenon provides a mechanism for core-hole localization in the final state.