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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 | C6H6O | 24599573 | 2,4-Cyclohexadienone | ![]() |
|
b | C6H5OH | 108952 | phenol | 0.0 | ![]() |
c | C6H6O | 5664335 | 2,5-Cyclohexadienone | 46.4 | ![]() |
semi-empirical | AM1 | 0.0 b |
---|---|---|
PM3 | 49.2 a 0.0 b 54.4 c |
|
MNDOd | 0.0 b |
|
composite | G1 | 0.0 b 65.4 c |
G2MP2 | 0.0 b 65.9 c |
|
G2 | 0.0 b 65.6 c |
|
G3 | 0.0 b 69.5 c |
|
G3B3 | 72.6 a 0.0 b 66.9 c |
|
G3MP2 | 76.7 a 0.0 b |
|
G4 | 72.3 a 0.0 b 67.5 c |
|
CBS-Q | 0.0 b 375.2 c |
|
molecular mechanics | MM3 | 0.0 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 | aug-cc-pVDZ | aug-cc-pVTZ | cc-pV(T+d)Z | daug-cc-pVTZ | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
hartree fock | HF | 0.0 b 87.5 c |
87.8 a 0.0 b 80.3 c |
0.0 b 80.3 c |
0.0 b 83.6 c |
50.2 a 0.0 b 42.0 c |
0.0 b 55.5 c |
65.6 a 0.0 b 57.9 c |
0.0 b 38.6 c |
0.0 b 55.3 c |
0.0 b 52.7 c |
63.9 a 0.0 b |
65.3 a 0.0 b 57.3 c |
0.0 b 54.0 c |
0.0 b 56.1 c |
0.0 b 53.8 c |
0.0 b 56.5 c |
0.0 b |
66.4 a 0.0 b 56.5 c |
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 | ||
BLYP | 0.0 b 79.3 c |
0.0 b 52.6 c |
0.0 b 52.6 c |
0.0 b 58.4 c |
53.3 a 0.0 b 50.6 c |
0.0 b 61.0 c |
0.0 b 62.7 c |
0.0 b 48.8 c |
0.0 b 63.4 c |
0.0 b 64.9 c |
NC |
0.0 b 64.0 c |
0.0 b 67.8 c |
0.0 b |
0.0 b |
||||
B1B95 | 0.0 b 93.8 c |
0.0 b 78.6 c |
0.0 b 78.6 c |
0.0 b 88.2 c |
0.0 b 62.5 c |
0.0 b 107.0 c |
78.0 a 0.0 b 86.0 c |
0.0 b 70.8 c |
0.0 b 86.7 c |
0.0 b 86.6 c |
NC |
0.0 b 84.7 c |
0.0 b 79.7 c |
0.0 b 77.9 c |
0.0 b 80.5 c |
0.0 b |
|||
B3LYP | 0.0 b 85.8 c |
67.2 a 0.0 b 62.6 c |
0.0 b 62.6 c |
0.0 b 68.7 c |
60.0 a 0.0 b 56.1 c |
0.0 b 67.2 c |
72.4 a 0.0 b 69.0 c |
0.0 b 53.9 c |
0.0 b 69.3 c |
75.4 a 0.0 b 70.5 c |
0.0 b |
74.3 a 0.0 b 70.8 c |
0.0 b 69.3 c |
0.0 b 73.3 c |
0.0 b 72.5 c |
78.9 a 0.0 b 74.3 c |
0.0 b |
||
B3LYPultrafine | NC |
0.0 b 56.1 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
78.9 a 0.0 b 74.4 c |
|||||||||
B3PW91 | 0.0 b 87.0 c |
0.0 b 65.0 c |
0.0 b 65.0 c |
0.0 b 70.9 c |
0.0 b 59.3 c |
0.0 b 70.7 c |
0.0 b 72.1 c |
0.0 b 56.4 c |
0.0 b 72.5 c |
0.0 b 73.8 c |
NC |
0.0 b 71.7 c |
0.0 b 76.7 c |
0.0 b |
0.0 b |
||||
mPW1PW91 | 0.0 b 89.0 c |
0.0 b 61.7 c |
0.0 b 67.6 c |
0.0 b 73.3 c |
0.0 b 54.6 c |
0.0 b 66.4 c |
0.0 b 67.8 c |
0.0 b 51.7 c |
0.0 b 73.7 c |
0.0 b 75.0 c |
NC |
0.0 b 67.0 c |
0.0 b 72.2 c |
0.0 b 75.3 c |
NC |
0.0 b |
|||
M06-2X | NC |
NC |
80.9 a 0.0 b 75.4 c |
NC |
0.0 b 67.1 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
||||
PBEPBE | 0.0 b 84.0 c |
0.0 b 56.3 c |
0.0 b 56.3 c |
0.0 b 61.8 c |
0.0 b 55.4 c |
0.0 b 66.4 c |
0.0 b 67.4 c |
0.0 b 52.8 c |
0.0 b 68.5 c |
0.0 b 70.5 c |
NC |
0.0 b 68.3 c |
0.0 b 73.4 c |
0.0 b 71.5 c |
NC |
0.0 b |
|||
PBEPBEultrafine | NC |
0.0 b 55.4 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
|||||||||
PBE1PBE | NC |
NC |
NC |
NC |
0.0 b 60.8 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
||||
HSEh1PBE | NC |
0.0 b 67.3 c |
NC |
NC |
0.0 b 60.3 c |
NC |
0.0 b 73.4 c |
NC |
NC |
NC |
NC |
NC |
0.0 b 77.9 c |
NC |
NC |
||||
TPSSh | NC |
NC |
NC |
58.2 a 0.0 b 54.5 c |
NC |
70.0 a 0.0 b 66.8 c |
NC |
73.1 a 0.0 b |
NC |
NC |
76.0 a 0.0 b 71.4 c |
NC |
NC |
||||||
wB97X-D | 68.6 a 0.0 b 65.2 c |
60.0 a 0.0 b 57.1 c |
72.3 a 0.0 b 69.8 c |
72.7 a 0.0 b 69.5 c |
73.0 a 0.0 b 70.4 c |
72.4 a 0.0 b 69.8 c |
76.7 a 0.0 b 72.7 c |
77.3 a 0.0 b 73.2 c |
|||||||||||
B97D3 | 59.4 a 0.0 b 56.1 c |
55.4 a 0.0 b 53.0 c |
67.3 a 0.0 b 65.4 c |
68.4 a 0.0 b 66.1 c |
0.0 b 69.6 c |
0.0 b 67.8 c |
0.0 b 70.4 c |
0.0 b 71.3 c |
|||||||||||
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 | aug-cc-pVDZ | aug-cc-pVTZ | cc-pV(T+d)Z | daug-cc-pVTZ | ||
Moller Plesset perturbation | MP2 | 0.0 b 45.3 c |
0.0 b 56.8 c |
0.0 b 56.8 c |
0.0 b 65.0 c |
0.0 b 66.9 c |
0.0 b 77.2 c |
0.0 b 80.6 c |
0.0 b 63.2 c |
0.0 b 82.2 c |
c |
0.0 b 79.5 c |
0.0 b 90.9 c |
0.0 b 84.4 c |
0.0 b 91.6 c |
||||
MP2=FULL | NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
0.0 b 83.0 c |
NC |
NC |
0.0 b 92.5 c |
NC |
NC |
|||||
MP3 | 0.0 b 55.4 c |
c |
NC |
NC |
|||||||||||||||
MP3=FULL | 61.7 a 0.0 b |
NC |
NC |
NC |
|||||||||||||||
MP4 | NC |
NC |
NC |
NC |
|||||||||||||||
MP4=FULL | NC |
NC |
NC |
NC |
|||||||||||||||
B2PLYP | NC |
NC |
NC |
NC |
0.0 b 56.1 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
80.7 a 0.0 b 75.3 c |
NC |
NC |
||||
B2PLYP=FULL | NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
||||
Configuration interaction | CID | NC |
NC |
NC |
NC |
NC |
|||||||||||||
CISD | 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 | aug-cc-pVDZ | aug-cc-pVTZ | cc-pV(T+d)Z | daug-cc-pVTZ | ||
Quadratic configuration interaction | QCISD | NC |
NC |
NC |
c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
|||||||
QCISD(T) | NC |
||||||||||||||||||
QCISD(T)=FULL | NC |
NC |
NC |
||||||||||||||||
Coupled Cluster | CCD | NC |
NC |
NC |
0.0 b 50.3 c |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
||||||
CCSD | NC |
NC |
NC |
||||||||||||||||
CCSD=FULL | NC |
NC |
NC |
||||||||||||||||
CCSD(T) | NC |
NC |
|||||||||||||||||
CCSD(T)=FULL | 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 | aug-cc-pVDZ | aug-cc-pVTZ | cc-pV(T+d)Z | daug-cc-pVTZ |
CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
---|---|---|---|---|---|---|---|---|---|---|
hartree fock | HF | 0.0 b 79.0 c |
0.0 b 35.1 c |
0.0 b 81.5 c |
0.0 b 39.2 c |
0.0 b 85.3 c |
0.0 b 85.1 c |
66.6 a 0.0 b 56.8 c |
||
density functional | B1B95 | 77.5 a 0.0 b |
63.4 a 0.0 b |
|||||||
B3LYP | 0.0 b 67.9 c |
0.0 b 51.6 c |
0.0 b 70.9 c |
0.0 b 55.5 c |
0.0 b 73.0 c |
0.0 b 72.7 c |
78.5 a 0.0 b 74.1 c |
|||
PBEPBE | 77.0 a 0.0 b 74.0 c |
|||||||||
Moller Plesset perturbation | MP2 | 0.0 b 60.7 c |
0.0 b 56.5 c |
NC |
0.0 b 67.0 c |
0.0 b 66.6 c |
0.0 b 92.0 c |
aug-cc-pVDZ | ||
---|---|---|
Moller Plesset perturbation | MP2FC// MP2FC/6-31G* | 0.0 b |