Two isomers of CuO{sub 2}: The Cu(O{sub 2}) complex and the copper dioxide
- Department of Physics, Washington State University, Richland, Washington 99352 (United States)
Photoelectron spectroscopy of CuO{sup {minus}}{sub 2} has been studied at three detachment wavelengths: 532 nm, 355 nm, and 266 nm. Vibrationally resolved spectra for two distinct isomers are observed: the Cu(O{sub 2}) complex and the copper dioxide molecule. The Cu(O){sub 2} complex has an electron affinity (EA) of 1.503 (10) eV with a ground state vibrational frequency of 530 (50) cm{sup {minus}1}. Its first electronic excited state is 7400 (300) cm{sup {minus}1} above the ground state. The Cu(O{sub 2}){sup {minus}} anion is also observed to undergo photodissociation to Cu{sup {minus}}+O{sub 2} at both 532 nm and 355 nm detachment wavelengths. The copper dioxide molecule is found to have a high EA of 3.46 (4) eV. Three low-lying excited states are observed within 1 eV above the ground state. The first two excited states of the copper dioxide molecule both possess a totally symmetric vibrational frequency of 640 (60) cm{sup {minus}1}.
- Research Organization:
- Pacific Northwest National Laboratory
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 119407
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 10 Vol. 103; ISSN JCPSA6; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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