Journal of the American Chemical Society p. 7675 - 7681 (1989)
Update date:2022-08-16
Topics:
Nimlos, Mark R.
Soderquist, J. A.
Ellison, G. Barney
We have measured the photoelectron spectra of CH3CO(-) and CH2DCO(-) and find the following electron affinities: EA(CH3CO) = 0.423 +/- 0.037 eV and EA(CH2DCO) = 0.418 +/- 0.038 eV.The spectra show excitation the C-C-O bending vibration of the radical, and we have measured the following bending frequencies: ν11(CH3CO) = 490 +/- 30 cm-1, ν11(CH2DCO) = 500 +/- 50 cm-1, and ν11(CH3CO(-)) = 570 +/- 180 cm-1.From a Franck-Condon analysis of the vibronic peak intensities we have estimated these C-C-O bond angles for the acetyl anion and radical:α(CCO)
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