Photoelectron Angular Distribution and Molecular Structure in Multiply Charged Anions

Journal Article · Thu Feb 12 04:00:00 EST 2009 · Journal of Physical Chemistry A, 113(6):945-948

DOI:https://doi.org/10.1021/jp8073442· OSTI ID:950175

Xing, Xiaopeng; Wang, Xue B; Wang, Lai S

Photoelectrons emitted from multiply charged anions (MCAs) carry information of the intramolecular Coulomb repulsion (ICR), which is dependent on molecular structures. Using photoelectron imaging, we observed the effects of ICR on photoelectron angular distributions (PAD) of the three isomers of benzene dicarboxylate dianions C6H4(CO2)22– (o-, m- and p-BDC2–). Photoelectrons were observed to peak along the laser polarization due to the ICR, but the anisotropy was the largest for p-BDC2–, followed by the m- and o-isomer. The observed anisotropy is related to the direction of the ICR or the detailed molecular structures, suggesting that photoelectron imaging may allow structural information to be obtained for complex multiply charged anions.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 950175
• Report Number(s): PNNL-SA-63399; 25395; KC0301020
• Journal Information: Journal of Physical Chemistry A, 113(6):945-948, Journal Name: Journal of Physical Chemistry A, 113(6):945-948 Journal Issue: 6 Vol. 113; ISSN 1089-5639
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ANGULAR DISTRIBUTION
ANIONS
ANISOTROPY
BENZENE
COULOMB FIELD
DICARBOXYLIC ACIDS
Environmental Molecular Sciences Laboratory
ISOMERS
MOLECULAR STRUCTURE