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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: Comparisons > Energy > Similar molecules > Isomers OR FAQ Help > List > Similar molecules > Isomers | |
| index | Species | CAS number | Name | Relative experimental enthalpy (kJ mol-1) | sketch |
|---|---|---|---|---|---|
| a | CHBrCHBr | 590114 | Ethene, 1,2-dibromo-, (Z)- | ![]() |
|
| b | CHBrCHBr | 590125 | Ethene, 1,2-dibromo-, (E)- | ![]() |
|
| c | C2H2Br2 | 593920 | 1,1-dibromoethene | ![]() |
| composite | G1 | NC NC |
|---|---|---|
| G2MP2 | NC NC |
|
| G2 | NC NC NC |
|
| G3 | NC NC NC |
|
| G3B3 | NC NC NC |
|
| G4 | NC NC NC |
|
| CBS-Q | NC NC NC |
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | aug-cc-pVDZ | aug-cc-pVTZ | aug-cc-pVQZ | daug-cc-pVTZ | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC NC |
| density functional | LSDA | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||
| BLYP | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| B1B95 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| B3LYP | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||
| B3LYPultrafine | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||||||
| B3PW91 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| mPW1PW91 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| M06-2X | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC | NC NC |
NC NC |
NC | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||
| PBEPBE | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| PBEPBEultrafine | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||||||
| PBE1PBE | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| HSEh1PBE | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| TPSSh | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||
| wB97X-D | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||
| B97D3 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | aug-cc-pVDZ | aug-cc-pVTZ | aug-cc-pVQZ | daug-cc-pVTZ | ||
| Moller Plesset perturbation | MP2 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|
| MP2=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||
| MP3 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||||||||||||
| MP3=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC | |||||
| MP4 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC | |||||||||||
| MP4=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||||||||||||
| B2PLYP | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| B2PLYP=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| Configuration interaction | CID | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||||||||
| CISD | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||||||||||
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | aug-cc-pVDZ | aug-cc-pVTZ | aug-cc-pVQZ | daug-cc-pVTZ | ||
| Quadratic configuration interaction | QCISD | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| QCISD(T) | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC |
||||||||||||
| QCISD(T)=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||||||||||||
| Coupled Cluster | CCD | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| CCSD | NC NC |
NC NC |
NC | NC NC |
NC NC |
NC NC |
NC |
NC NC |
||||||||||||
| CCSD=FULL | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||||||||||
| CCSD(T) | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||||||
| CCSD(T)=FULL | NC NC |
NC NC |
NC |
NC | NC NC |
|||||||||||||||
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | aug-cc-pVDZ | aug-cc-pVTZ | aug-cc-pVQZ | daug-cc-pVTZ |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | NC NC |
NC NC |
NC NC |
NC NC |
NC NC NC |
||||
| density functional | LSDA | NC NC |
||||||||
| BLYP | NC NC |
|||||||||
| B1B95 | NC NC |
|||||||||
| B3LYP | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||
| B3LYPultrafine | NC NC |
|||||||||
| B3PW91 | NC NC |
|||||||||
| mPW1PW91 | NC NC |
|||||||||
| M06-2X | NC NC |
|||||||||
| PBEPBE | NC NC |
|||||||||
| PBEPBEultrafine | NC NC |
|||||||||
| PBE1PBE | NC NC |
|||||||||
| HSEh1PBE | NC NC |
|||||||||
| TPSSh | NC NC |
|||||||||
| wB97X-D | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
|||||
| B97D3 | NC NC |
|||||||||
| Moller Plesset perturbation | MP2 | NC NC |
NC NC |
NC NC |
NC NC |
NC NC |
||||
| MP2=FULL | NC NC |
|||||||||
| MP3 | NC NC |
|||||||||
| MP3=FULL | NC NC |
|||||||||
| MP4 | NC NC |
|||||||||
| MP4=FULL | NC NC |
|||||||||
| B2PLYP | NC NC |
|||||||||
| B2PLYP=FULL | NC NC |
|||||||||
| Configuration interaction | CID | NC NC |
||||||||
| CISD | NC NC |
|||||||||
| Quadratic configuration interaction | QCISD | NC NC |
||||||||
| QCISD(T) | NC NC |
|||||||||
| Coupled Cluster | CCD | NC NC |
||||||||
| CCSD | NC NC |
|||||||||
| CCSD=FULL | NC NC |
|||||||||
| CCSD(T) | NC NC |
|||||||||
| CCSD(T)=FULL | NC NC |