Imaging Intramolecular Coulomb Repulsions in Multiply Charged Anions
Journal Article
·
· Physical Review Letters, 101(8):Art. no. 083003
Properties of multiply charged anions are dominated by the intramolecular Coulomb repulsion (ICR). Using photoelectron imaging, we show the effect of ICR on photoelectron angular distributions for a series of dianions, -O2C(CH2)nCO2 -(Dn2-). The observed photoemission band of Dn2- was due to a perpendicular transition from the charged end group. However, photoemission intensities were observed to peak along the laser polarization for smaller n due to the strong ICR that forces electrons to be emitted along the molecular axis. This emission pattern weakens with increasing n and at D112- the angular distribution reverses back to peak at the perpendicular direction due to the reduced ICR.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 939593
- Report Number(s):
- PNNL-SA-61560; PRLTAO; 25395; TRN: US200823%%167
- Journal Information:
- Physical Review Letters, 101(8):Art. no. 083003, Vol. 101, Issue 8; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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