The electronic states of strontium sulfide SrS: A global perspective and transition moments, radiative transition probabilities, and radiative lifetimes for selected
| Autor: | Fernando R. Ornellas, Matheus Morato F. de Moraes |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Strontium sulfide Radiation 010504 meteorology & atmospheric sciences 01 natural sciences Bond-dissociation energy Potential energy Atomic and Molecular Physics and Optics Spectral line chemistry.chemical_compound Dipole chemistry ESTRÔNCIO Moment (physics) Radiative transfer Atomic physics Ground state Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Λ + S and Ω electronic states of strontium sulfide are characterized at the CASSCF/MRCI+Q level of theory. This is the first work to provide a reliable picture of the potential energy curves showing the challenges one might face to investigate them either theoretically or experimentally. Spectroscopic parameters and averaged dipole moment functions are reported. Einstein emission coefficients provide relevant information on the relative intensities for selected transitions. Radiative lifetimes are also estimated and an accurate value of dissociation energy for the ground state obtained. Perturbing states in the 1Σ+ − 1Σ+ spectra observed experimentally can now be clearly identified. The reliability and perspective of the present results are expected to motivate and guide future experimental investigations on this system. |
| Databáze: | OpenAIRE |
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