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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Calculated > Geometry > Calculated geometry > One type of bond | |
| semi-empirical | PM3 | 1.7278 1 |
|---|---|---|
| PM6 | 2.0725 1 |
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| composite | G2 | 2.0827 1 |
| G3 | 2.0960 1 |
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| G3B3 | 2.1092 1 |
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| G4 | 2.0924 1 |
|
| CBS-Q | 2.0759 1 |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 2.1663 1 |
2.1666 1 |
2.2013 1 |
2.2404 1 |
2.0930 1 |
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| ROHF | 2.0512 1 |
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| density functional | BLYP | 2.1158 1 |
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| B1B95 | 2.0701 1 |
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| B3LYP | 2.1526 1 |
2.1525 1 |
2.1563 1 |
2.1707 1 |
2.0969 1 |
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| B3LYPultrafine | 2.0969 1 |
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| B3PW91 | 2.0753 1 |
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| mPW1PW91 | 2.0707 1 |
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| M06-2X | 2.0877 1 |
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| PBEPBE | 2.0871 1 |
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| PBEPBEultrafine | 2.0871 1 |
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| PBE1PBE | 2.0704 1 |
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| HSEh1PBE | 2.0730 1 |
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| TPSSh | 2.0725 1 |
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| wB97X-D | 2.1405 1 |
2.1403 1 |
2.1456 1 |
2.1569 1 |
2.0820 1 |
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| B97D3 | 2.1028 1 |
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| Moller Plesset perturbation | MP2 | 2.0758 1 |
2.0731 1 |
2.1139 1 |
2.1489 1 |
2.0400 1 |
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| MP2=FULL | 2.0400 1 |
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| ROMP2 | 2.0744 1 |
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| B2PLYP | 2.0781 1 |
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| B2PLYP=FULL | 2.0779 1 |
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| B2PLYP=FULLultrafine | 2.0779 1 |
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| Configuration interaction | CID | 2.0636 1 |
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| CISD | 2.0661 1 |
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| Quadratic configuration interaction | QCISD | 2.0816 1 |
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| QCISD(T) | 2.0804 1 |
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| QCISD(T)=FULL | 2.0813 1 |
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| Coupled Cluster | CCD | 2.0706 1 |
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| CCSD | 2.0793 1 |
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| CCSD=FULL | 2.0802 1 |
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| CCSD(T) | 2.0776 1 |
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| CCSD(T)=FULL | 2.0785 1 |