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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 | AM1 | 1.8372 6 |
|---|---|---|
| PM3 | 1.7617 7 |
|
| PM6 | 1.8754 7 |
|
| composite | G2 | 1.7404 6 |
| G3 | 1.7404 6 |
|
| G3B3 | 1.7386 6 |
|
| G3MP2 | 1.7997 2 |
|
| G4 | 1.7288 7 |
|
| CBS-Q | 1.7522 6 |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 1.8806 6 |
1.8471 6 |
1.7481 6 |
1.7232 6 |
1.8024 6 |
1.7985 6 |
1.7428 7 |
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| ROHF | 2.0505 1 |
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| density functional | BLYP | 1.7687 6 |
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| B1B95 | 1.6991 1 |
1.6719 1 |
1.7553 6 |
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| B3LYP | 1.8849 6 |
1.8577 6 |
1.7665 6 |
1.7461 6 |
1.7970 6 |
1.7955 6 |
1.7499 7 |
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| B3LYPultrafine | 1.7515 6 |
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| B3PW91 | 1.7615 6 |
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| mPW1PW91 | 1.7539 6 |
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| M06-2X | 1.7455 6 |
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| PBEPBE | 1.7634 7 |
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| PBEPBEultrafine | 1.7662 6 |
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| PBE1PBE | 1.7498 6 |
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| HSEh1PBE | 1.7502 6 |
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| TPSSh | 1.7563 6 |
|||||||||
| wB97X-D | 1.8861 6 |
1.8574 6 |
1.7630 6 |
1.7412 6 |
1.8312 6 |
1.8292 6 |
1.7848 6 |
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| B97D3 | 1.7923 6 |
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| Moller Plesset perturbation | MP2 | 1.9079 6 |
1.8772 6 |
1.7751 6 |
1.7519 6 |
1.8295 6 |
1.8251 6 |
1.7688 7 |
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| MP2=FULL | 1.7632 6 |
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| ROMP2 | 2.0751 1 |
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| MP3 | 1.7595 6 |
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| MP3=FULL | 1.7506 6 |
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| MP4 | 1.7705 6 |
|||||||||
| MP4=FULL | 1.7606 6 |
|||||||||
| B2PLYP | 1.7532 6 |
|||||||||
| B2PLYP=FULL | 1.7505 6 |
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| B2PLYP=FULLultrafine | 1.7505 6 |
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| Configuration interaction | CID | 1.7570 6 |
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| CISD | 1.7578 6 |
|||||||||
| Quadratic configuration interaction | QCISD | 1.7648 6 |
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| QCISD(T) | 1.7671 6 |
|||||||||
| QCISD(T)=FULL | 1.7575 6 |
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| Coupled Cluster | CCD | 1.7623 6 |
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| CCSD | 1.7635 6 |
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| CCSD=FULL | 1.7545 6 |
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| CCSD(T) | 1.7666 6 |
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| CCSD(T)=FULL | 1.7571 6 |