State | CASSCF/cc-pVTZa | MRCI+Q/cc-pVTZb | Electron configuration |
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0.0 | 0.0 |
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0.43 | 0.69 |
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0.79 | 0.98 |
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1.17 | 1.11 |
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1.62 | 2.19 |
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2.73 | 2.27 |
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1.97 | 2.32 |
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1.71 | 2.38 |
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3.20 | 3.31 |
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3.87 | 3.48 |
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3.44 | 3.55 |
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3.02 | 3.69 |
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3.98 | 4.37 |
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4.08 | 4.67 |
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a E(CASSCF/cc-pVTZ) = -402.347488