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A theoretical study of AmOn and CmOn (n = 1, 2)
Attila Kovács1, Rudy J M Konings, Juraj Raab
1Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111, Budapest, Szt. Gellért tér 4, Hungary. akovacs@mail.bme.hu
Physical Chemistry Chemical Physics : PCCP
|February 14, 2008
Summary
Quantum chemical methods accurately predict properties of americium and curium oxides. Calculated dissociation and ionization energies closely match experimental values for AmO and CmO.
Area of Science:
- Actinide chemistry
- Quantum chemistry
- Spectroscopy
Background:
- Americium (Am) and curium (Cm) oxides are important in nuclear science.
- Accurate theoretical data is needed to complement experimental findings for these elements.
Purpose of the Study:
- To computationally investigate the electronic structure and spectroscopic properties of americium and curium oxides (AmOn, CmOn, n=1,2).
- To validate theoretical methods by comparing computed properties with experimental data.
Main Methods:
- Utilized advanced multiconfigurational, relativistic, quantum chemical calculations.
- Determined ground and excited state properties, including dissociation and ionization energies.
Main Results:
- Computed dissociation energy for AmO (4.6 eV) aligns with experimental estimates (5.73 eV).
- Computed dissociation energy for CmO (7.1 eV) shows good agreement with the experimental value (7.5 eV).
- Computed ionization energy for AmO (6.3 eV) is consistent with experimental data (5.9 eV).
Conclusions:
- The employed quantum chemical methods provide reliable predictions for americium and curium oxide properties.
- Theoretical calculations can effectively support and guide experimental investigations in actinide chemistry.
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