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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 | ZnCN | 73963981 | Zinc monocyanide | ![]() |
|
| b | ZnNC | 748101419 | Zinc isocyanide | ![]() |
| composite | G2 | 0.0 a 22.3 b |
|---|---|---|
| CBS-Q | 0.0 a 21.6 b |
| 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 0.0 a -112.4 b |
0.0 a -19.2 b |
0.0 a -19.2 b |
0.0 a -12.9 b |
0.0 a -2.7 b |
0.0 a -2.7 b |
0.0 a -6.0 b |
0.0 a 3.4 b |
0.0 a 3.4 b |
0.0 a -9.4 b |
0.0 a -4.5 b |
0.0 a -1.8 b |
0.0 a -3.0 b |
0.0 a -3.7 b |
0.0 a -5.5 b |
0.0 a -5.0 b |
||
| ROHF | 0.0 a -20.5 b |
0.0 a -20.5 b |
0.0 a -15.8 b |
0.0 a -3.9 b |
0.0 a -3.9 b |
0.0 a -7.1 b |
0.0 a 1.5 b |
0.0 a 1.5 b |
0.0 a -5.4 b |
0.0 a -2.8 b |
0.0 a -4.2 b |
0.0 a -4.6 b |
0.0 a -5.4 b |
0.0 a -6.5 b |
0.0 a -5.9 b |
0.0 a -5.9 b |
|||
| density functional | LSDA | 0.0 a 32.6 b |
0.0 a 32.6 b |
0.0 a 29.4 b |
0.0 a 24.7 b |
0.0 a 35.7 b |
0.0 a 35.7 b |
0.0 a 20.0 b |
0.0 a 26.9 b |
0.0 a 28.9 b |
0.0 a 25.7 b |
0.0 a 26.6 b |
0.0 a 24.3 b |
0.0 a 25.7 b |
|||||
| BLYP | 0.0 a 30.1 b |
0.0 a 30.1 b |
0.0 a 25.0 b |
0.0 a 21.6 b |
0.0 a 31.8 b |
0.0 a 31.8 b |
0.0 a 17.0 b |
0.0 a 23.9 b |
0.0 a 25.3 b |
0.0 a 21.1 b |
0.0 a 23.4 b |
0.0 a 21.1 b |
0.0 a 22.8 b |
||||||
| B1B95 | 0.0 a 18.0 b |
0.0 a 18.0 b |
0.0 a 19.4 b |
0.0 a 23.6 b |
0.0 a 23.6 b |
0.0 a 30.2 b |
0.0 a 30.2 b |
0.0 a 13.8 b |
0.0 a 20.3 b |
0.0 a 22.5 b |
0.0 a 20.0 b |
0.0 a 20.3 b |
0.0 a 18.4 b |
0.0 a 19.2 b |
|||||
| B3LYP | 0.0 a 20.8 b |
0.0 a 20.8 b |
0.0 a 19.5 b |
0.0 a 23.6 b |
0.0 a 23.6 b |
0.0 a 18.4 b |
0.0 a 30.3 b |
0.0 a 30.3 b |
0.0 a 12.8 b |
0.0 a 20.2 b |
0.0 a 22.2 b |
0.0 a 19.2 b |
0.0 a 20.1 b |
0.0 a 17.7 b |
0.0 a 19.3 b |
||||
| B3LYPultrafine | 0.0 a 20.8 b |
0.0 a 23.5 b |
0.0 a 23.5 b |
0.0 a 18.4 b |
0.0 a 30.3 b |
0.0 a 12.8 b |
0.0 a 20.2 b |
0.0 a 22.2 b |
0.0 a 19.1 b |
0.0 a 20.1 b |
0.0 a 17.7 b |
0.0 a 19.3 b |
|||||||
| B3PW91 | 0.0 a 22.0 b |
0.0 a 22.0 b |
0.0 a 21.2 b |
0.0 a 25.2 b |
0.0 a 25.2 b |
0.0 a 21.3 b |
0.0 a 31.7 b |
0.0 a 31.7 b |
0.0 a 15.9 b |
0.0 a 23.0 b |
0.0 a 25.1 b |
0.0 a 22.0 b |
0.0 a 22.7 b |
0.0 a 20.9 b |
0.0 a 22.0 b |
||||
| mPW1PW91 | 0.0 a 18.8 b |
0.0 a 18.8 b |
0.0 a 19.3 b |
0.0 a 23.5 b |
0.0 a 23.5 b |
0.0 a 19.9 b |
0.0 a 30.5 b |
0.0 a 30.5 b |
0.0 a 14.6 b |
0.0 a 21.6 b |
0.0 a 23.9 b |
0.0 a 20.6 b |
0.0 a 21.4 b |
0.0 a 19.7 b |
0.0 a 20.7 b |
||||
| M06-2X | 0.0 a -172.6 b |
0.0 a 7.8 b |
0.0 a 7.8 b |
0.0 a 12.5 b |
0.0 a 17.5 b |
0.0 a 17.5 b |
0.0 a 12.2 b |
0.0 a 22.5 b |
0.0 a 22.5 b |
0.0 a 9.4 b |
0.0 a 14.6 b |
0.0 a 14.8 b |
0.0 a 12.8 b |
0.0 a 12.9 b |
0.0 a 11.7 b |
||||
| PBEPBE | 0.0 a 32.5 b |
0.0 a 32.5 b |
0.0 a 29.3 b |
0.0 a 26.5 b |
0.0 a 36.0 b |
0.0 a 36.0 b |
0.0 a 22.1 b |
0.0 a 28.1 b |
0.0 a 29.8 b |
0.0 a 26.3 b |
0.0 a 27.8 b |
0.0 a 26.0 b |
0.0 a 26.9 b |
||||||
| PBEPBEultrafine | 0.0 a 32.5 b |
0.0 a 26.5 b |
0.0 a 36.0 b |
0.0 a 22.2 b |
0.0 a 28.1 b |
0.0 a 29.8 b |
0.0 a 26.3 b |
0.0 a 27.8 b |
0.0 a 26.0 b |
0.0 a 26.9 b |
|||||||||
| PBE1PBE | 0.0 a 19.5 b |
0.0 a 19.5 b |
0.0 a 20.4 b |
0.0 a 24.5 b |
0.0 a 24.5 b |
0.0 a 20.7 b |
0.0 a 31.4 b |
0.0 a 31.4 b |
0.0 a 15.5 b |
0.0 a 22.0 b |
0.0 a 24.2 b |
0.0 a 21.6 b |
0.0 a 22.0 b |
0.0 a 20.3 b |
0.0 a 21.0 b |
||||
| HSEh1PBE | 0.0 a 20.0 b |
0.0 a 20.0 b |
0.0 a 20.5 b |
0.0 a 24.7 b |
0.0 a 24.7 b |
0.0 a 20.7 b |
0.0 a 31.6 b |
0.0 a 31.6 b |
0.0 a 15.4 b |
0.0 a 22.2 b |
0.0 a 24.3 b |
0.0 a 21.6 b |
0.0 a 22.2 b |
0.0 a 20.2 b |
0.0 a 21.3 b |
||||
| TPSSh | 0.0 a 19.9 b |
0.0 a 19.9 b |
0.0 a 19.4 b |
0.0 a 23.5 b |
0.0 a 19.2 b |
0.0 a 29.9 b |
0.0 a 29.9 b |
0.0 a 14.3 b |
0.0 a 20.9 b |
0.0 a 23.1 b |
0.0 a 19.5 b |
0.0 a 20.6 b |
0.0 a 19.2 b |
0.0 a 20.1 b |
|||||
| wB97X-D | 0.0 a 17.7 b |
0.0 a 17.7 b |
0.0 a 16.7 b |
0.0 a 21.8 b |
0.0 a 21.8 b |
0.0 a 18.2 b |
0.0 a 30.8 b |
0.0 a 30.8 b |
0.0 a 12.3 b |
0.0 a 20.6 b |
0.0 a 23.2 b |
0.0 a 20.3 b |
0.0 a 21.1 b |
0.0 a 18.3 b |
0.0 a 20.1 b |
||||
| B97D3 | 0.0 a 19.7 b |
0.0 a 19.7 b |
0.0 a 16.2 b |
0.0 a 17.5 b |
0.0 a 26.4 b |
0.0 a 26.4 b |
0.0 a 11.9 b |
0.0 a 19.3 b |
0.0 a 20.6 b |
0.0 a 17.0 b |
0.0 a 19.1 b |
0.0 a 17.8 b |
0.0 a 18.7 b |
||||||
| 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 | ||
| Moller Plesset perturbation | MP2 | 0.0 a -5.6 b |
0.0 a 8.8 b |
0.0 a 8.8 b |
0.0 a 3.1 b |
0.0 a 16.9 b |
0.0 a 13.2 b |
0.0 a 28.0 b |
0.0 a 28.0 b |
0.0 a 9.5 b |
0.0 a 19.5 b |
0.0 a 16.3 b |
0.0 a 20.4 b |
0.0 a 12.5 b |
0.0 a 17.8 b |
||||
| MP2=FULL | 0.0 a 9.0 b |
0.0 a 9.0 b |
0.0 a 4.2 b |
0.0 a 13.9 b |
0.0 a 29.7 b |
0.0 a 29.7 b |
0.0 a 11.9 b |
0.0 a 22.1 b |
0.0 a 21.2 b |
0.0 a 25.2 b |
0.0 a 11.5 b |
0.0 a 17.0 b |
|||||||
| ROMP2 | 0.0 a 34.2 b |
0.0 a 34.2 b |
0.0 a 41.0 b |
0.0 a 34.1 b |
0.0 a 34.1 b |
0.0 a 30.6 b |
0.0 a 43.0 b |
0.0 a 43.0 b |
0.0 a 25.7 b |
0.0 a 31.5 b |
0.0 a 35.6 b |
0.0 a 33.3 b |
0.0 a 31.0 b |
||||||
| MP3 | 0.0 a 12.8 b |
0.0 a 9.1 b |
0.0 a 12.8 b |
0.0 a 13.1 b |
0.0 a 14.1 b |
||||||||||||||
| MP3=FULL | 0.0 a 7.0 b |
0.0 a 7.0 b |
0.0 a 4.4 b |
0.0 a 13.6 b |
0.0 a 13.6 b |
0.0 a 8.5 b |
0.0 a 20.8 b |
0.0 a 20.8 b |
0.0 a 7.1 b |
0.0 a 13.3 b |
0.0 a 15.4 b |
0.0 a 16.7 b |
0.0 a 6.0 b |
0.0 a 8.5 b |
|||||
| MP4 | 0.0 a -2.5 b |
0.0 a 22.3 b |
0.0 a 15.4 b |
0.0 a 11.0 b |
0.0 a 16.4 b |
0.0 a 13.8 b |
|||||||||||||
| MP4=FULL | 0.0 a -2.3 b |
0.0 a 25.1 b |
0.0 a 19.2 b |
0.0 a 16.1 b |
0.0 a 22.4 b |
0.0 a 7.6 b |
0.0 a 14.0 b |
||||||||||||
| B2PLYP | 0.0 a 90.4 b |
0.0 a 22.4 b |
0.0 a 22.4 b |
0.0 a 24.7 b |
0.0 a 26.5 b |
0.0 a 26.5 b |
0.0 a 22.1 b |
0.0 a 34.1 b |
0.0 a 34.1 b |
0.0 a 16.8 b |
0.0 a 23.4 b |
0.0 a 25.7 b |
0.0 a 24.4 b |
0.0 a 24.0 b |
0.0 a 21.8 b |
0.0 a 22.5 b |
|||
| B2PLYP=FULL | 0.0 a -152.1 b |
0.0 a 22.5 b |
0.0 a 22.5 b |
0.0 a 25.0 b |
0.0 a 26.9 b |
0.0 a 26.9 b |
0.0 a 22.2 b |
0.0 a 34.5 b |
0.0 a 34.5 b |
0.0 a 17.1 b |
0.0 a 24.0 b |
0.0 a 26.0 b |
0.0 a 25.8 b |
0.0 a 25.1 b |
0.0 a 21.4 b |
0.0 a 21.9 b |
|||
| B2PLYP=FULLultrafine | 0.0 a 22.5 b |
0.0 a 22.5 b |
0.0 a 25.0 b |
0.0 a 26.9 b |
0.0 a 22.2 b |
0.0 a 34.5 b |
0.0 a 34.5 b |
0.0 a 17.1 b |
0.0 a 24.0 b |
0.0 a 25.9 b |
0.0 a 21.3 b |
||||||||
| Configuration interaction | CID | 0.0 a 2.6 b |
0.0 a 2.6 b |
0.0 a 0.3 b |
0.0 a 8.6 b |
0.0 a 16.8 b |
0.0 a 7.8 b |
0.0 a 8.1 b |
0.0 a 8.7 b |
||||||||||
| CISD | 0.0 a 3.1 b |
0.0 a 3.1 b |
0.0 a 2.6 b |
0.0 a 9.4 b |
0.0 a 17.5 b |
0.0 a 8.5 b |
0.0 a 8.7 b |
0.0 a 9.4 b |
|||||||||||
| 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 | ||
| Quadratic configuration interaction | QCISD | 0.0 a 19.9 b |
0.0 a 19.9 b |
0.0 a 25.5 b |
0.0 a 21.2 b |
0.0 a 21.2 b |
0.0 a 18.7 b |
0.0 a 27.8 b |
0.0 a 27.8 b |
0.0 a 12.0 b |
0.0 a 22.4 b |
0.0 a 19.9 b |
0.0 a 17.8 b |
0.0 a 17.6 b |
|||||
| QCISD(T) | 0.0 a 23.3 b |
0.0 a 30.5 b |
0.0 a 21.4 b |
0.0 a 24.2 b |
0.0 a 23.1 b |
0.0 a 19.5 b |
0.0 a 20.2 b |
||||||||||||
| QCISD(T)=FULL | 0.0 a 24.5 b |
0.0 a 20.2 b |
0.0 a 22.9 b |
0.0 a 27.8 b |
0.0 a 26.2 b |
0.0 a 23.4 b |
0.0 a 18.0 b |
||||||||||||
| Coupled Cluster | CCD | 0.0 a 8.8 b |
0.0 a 8.8 b |
0.0 a 5.1 b |
0.0 a 12.8 b |
0.0 a 12.8 b |
0.0 a 9.8 b |
0.0 a 21.6 b |
0.0 a 21.6 b |
0.0 a 5.0 b |
0.0 a 13.1 b |
0.0 a 12.9 b |
0.0 a 14.4 b |
0.0 a 8.1 b |
0.0 a 12.0 b |
||||
| CCSD | 0.0 a 21.3 b |
0.0 a 12.1 b |
0.0 a 18.4 b |
0.0 a 22.1 b |
0.0 a 19.7 b |
0.0 a 18.5 b |
0.0 a 17.2 b |
0.0 a 17.3 b |
|||||||||||
| CCSD=FULL | 0.0 a 22.2 b |
0.0 a 12.9 b |
0.0 a 19.5 b |
0.0 a 22.6 b |
0.0 a 25.4 b |
0.0 a 22.6 b |
0.0 a 19.6 b |
0.0 a 15.3 b |
|||||||||||
| CCSD(T) | 0.0 a 22.4 b |
0.0 a 22.4 b |
0.0 a 19.3 b |
0.0 a 29.8 b |
0.0 a 29.8 b |
0.0 a 13.8 b |
0.0 a 20.6 b |
0.0 a 23.1 b |
0.0 a 22.2 b |
0.0 a 21.0 b |
0.0 a 18.4 b |
0.0 a 19.4 b |
0.0 a 19.7 b |
||||||
| CCSD(T)=FULL | 0.0 a 23.5 b |
0.0 a 22.1 b |
0.0 a 26.6 b |
0.0 a 25.5 b |
0.0 a 22.6 b |
0.0 a 16.8 b |
0.0 a 16.7 b |
||||||||||||
| 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 |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 0.0 a -19.2 b |
0.0 a -17.8 b |
0.0 a -15.9 b |
0.0 a -18.1 b |
0.0 a -3.1 b |
||||
| ROHF | 0.0 a -4.0 b |
|||||||||
| density functional | LSDA | 0.0 a 26.9 b |
||||||||
| BLYP | 0.0 a 23.7 b |
|||||||||
| B1B95 | 0.0 a 21.1 b |
|||||||||
| B3LYP | 0.0 a 5.2 b |
0.0 a 6.4 b |
0.0 a 7.8 b |
0.0 a 8.0 b |
0.0 a 20.5 b |
|||||
| B3LYPultrafine | 0.0 a 20.5 b |
|||||||||
| B3PW91 | 0.0 a 23.5 b |
|||||||||
| mPW1PW91 | 0.0 a 22.4 b |
|||||||||
| M06-2X | 0.0 a 13.3 b |
|||||||||
| PBEPBE | 0.0 a 28.4 b |
|||||||||
| PBEPBEultrafine | 0.0 a 28.4 b |
|||||||||
| PBE1PBE | 0.0 a 22.8 b |
|||||||||
| HSEh1PBE | 0.0 a 22.8 b |
|||||||||
| TPSSh | 0.0 a 21.5 b |
|||||||||
| wB97X-D | 0.0 a 4.3 b |
0.0 a 6.0 b |
0.0 a 8.1 b |
0.0 a 9.7 b |
0.0 a 21.7 b |
|||||
| B97D3 | 0.0 a 19.6 b |
|||||||||
| Moller Plesset perturbation | MP2 | 0.0 a -10.2 b |
0.0 a -9.6 b |
0.0 a -11.4 b |
0.0 a 21.0 b |
|||||
| MP2=FULL | 0.0 a 23.5 b |
|||||||||
| ROMP2 | 0.0 a 33.5 b |
|||||||||
| MP3 | 0.0 a 14.7 b |
|||||||||
| MP3=FULL | 0.0 a 15.1 b |
|||||||||
| MP4 | 0.0 a 16.9 b |
|||||||||
| MP4=FULL | 0.0 a 20.2 b |
|||||||||
| B2PLYP | 0.0 a 24.3 b |
|||||||||
| B2PLYP=FULL | 0.0 a 24.8 b |
|||||||||
| B2PLYP=FULLultrafine | 0.0 a 24.8 b |
|||||||||
| Configuration interaction | CID | 0.0 a 9.5 b |
||||||||
| CISD | 0.0 a 10.2 b |
|||||||||
| Quadratic configuration interaction | QCISD | 0.0 a 20.3 b |
||||||||
| QCISD(T) | 0.0 a 23.2 b |
|||||||||
| QCISD(T)=FULL | 0.0 a 24.3 b |
|||||||||
| Coupled Cluster | CCD | 0.0 a 15.0 b |
||||||||
| CCSD | 0.0 a 20.1 b |
|||||||||
| CCSD=FULL | 0.0 a 21.0 b |
|||||||||
| CCSD(T) | 0.0 a 22.4 b |
|||||||||
| CCSD(T)=FULL | 0.0 a 23.6 b |