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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 | 2.0782 3 |
|---|---|---|
| PM6 | 2.1098 3 |
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| composite | G2 | 2.1675 2 |
| G3 | 2.1675 2 |
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| G3B3 | 2.1454 2 |
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| G3MP2 | 2.1675 2 |
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| G4 | 2.0689 3 |
|
| CBS-Q | 2.1809 2 |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 2.3127 2 |
2.2639 2 |
2.2611 2 |
2.2071 2 |
2.2430 2 |
2.2596 2 |
2.1262 3 |
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| ROHF | 2.5312 1 |
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| density functional | BLYP | 2.5136 1 |
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| B1B95 | 1.9934 1 |
1.9720 1 |
2.5207 1 |
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| B3LYP | 2.3131 2 |
2.2643 2 |
2.2832 2 |
2.2296 2 |
2.2458 2 |
2.2243 2 |
2.1138 3 |
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| B3LYPultrafine | 2.4830 1 |
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| B3PW91 | 2.5703 1 |
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| mPW1PW91 | 2.5314 1 |
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| M06-2X | 2.5030 1 |
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| PBEPBE | 2.1256 3 |
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| PBEPBEultrafine | 2.5062 1 |
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| PBE1PBE | 2.4925 1 |
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| HSEh1PBE | 2.4936 1 |
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| TPSSh | 2.5285 1 |
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| wB97X-D | 2.6631 1 |
2.5826 1 |
2.6616 1 |
2.5726 1 |
2.5822 1 |
2.7000 1 |
2.7000 1 |
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| B97D3 | 2.7889 1 |
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| Moller Plesset perturbation | MP2 | 2.3274 2 |
2.2728 2 |
2.2778 2 |
2.2252 2 |
2.2555 2 |
2.2841 2 |
2.1805 3 |
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| MP2=FULL | 2.5235 1 |
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| ROMP2 | 2.6049 1 |
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| MP3 | 2.5990 1 |
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| MP3=FULL | 2.5172 1 |
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| MP4 | 2.6044 1 |
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| MP4=FULL | 2.5200 1 |
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| B2PLYP | 2.5133 1 |
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| B2PLYP=FULL | 2.4751 1 |
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| B2PLYP=FULLultrafine | 2.4751 1 |
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| Configuration interaction | CID | 2.5964 1 |
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| CISD | 2.5978 1 |
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| Quadratic configuration interaction | QCISD | 2.6023 1 |
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| QCISD(T) | 2.6047 1 |
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| QCISD(T)=FULL | 2.5195 1 |
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| Coupled Cluster | CCD | 2.6001 1 |
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| CCSD | 2.6015 1 |
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| CCSD=FULL | 2.5200 1 |
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| CCSD(T) | 2.6044 1 |
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| CCSD(T)=FULL | 2.5192 1 |