IV.A.4. (XIV.F.) |
Relative enthalpies of isomers - Comparison of 298.15K enthalpies (kJ mol-1)
Isomers of C4H10O2
index | Species | CAS number | Name | Relative experimental enthalpy (kJ mol-1) | sketch |
---|---|---|---|---|---|
a | C4H10O2 | 107880 | 1,3-Butanediol | 0.0 | |
b | C4H10O2 | 110634 | 1,4-Butanediol | 6.3 | |
c | C4H10O2 | 534156 | 1,1-Dimethoxyethane | 43.3 | |
d | C4H10O2 | 110714 | Ethane, 1,2-dimethoxy- | 90.2 |
semi-empirical | AM1 | 0.0 a -8.3 b 68.7 c 84.0 d |
---|---|---|
PM3 | 0.0 a 4.1 b 54.4 c 83.2 d |
|
PM6 | -108.7 b -400.7 c -360.3 d |
|
MNDOd | 0.0 a -12.4 b 72.6 c 79.1 d |
|
composite | G1 | 0.0 a 22.0 b 65.8 c |
G2MP2 | 0.0 a 20.6 b 66.6 c |
|
G2 | 0.0 a 20.8 b 66.7 c |
|
G3 | 0.0 a 21.2 b 71.2 c 97.3 d |
|
G3B3 | 0.0 a 20.5 b 71.9 c 96.8 d |
|
G3MP2 | 0.0 a 20.6 b 73.4 c 98.9 d |
|
G4 | 0.0 a 19.8 b 70.4 c 95.2 d |
|
Group additivity | gaw | -425.9 b -347.0 d |
molecular mechanics | MM3 | 0.0 a 12.7 b 71.2 c 101.0 d |
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 a 10.9 b -22.6 c -12.2 d |
0.0 a 22.1 b 34.4 c 47.6 d |
0.0 a 22.1 b 34.4 c 47.6 d |
0.0 a 18.8 b 49.7 c 82.2 d |
0.0 a 32.5 c 45.7 d |
0.0 a 15.3 b 56.6 c 70.3 d |
0.0 a 13.8 b 65.9 c 77.2 d |
0.0 a 14.7 b 35.2 c 47.0 d |
0.0 a 15.0 b 62.6 c 75.3 d |
0.0 a 14.5 b 49.8 c 66.2 d |
0.0 a 12.8 b 56.5 c 70.8 d |
0.0 a 63.8 c 74.5 d |
0.0 a 15.4 b 58.6 c 72.5 d |
0.0 a 13.3 b 57.2 c 71.4 d |
0.0 a 12.8 b 73.5 c 86.6 d |
0.0 a 12.3 b 59.5 c 73.2 d |
0.0 a 13.3 b 57.2 c 71.4 d |
0.0 a 12.3 b 59.5 c |
density functional | LSDA | NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
NC |
||||
BLYP | 0.0 a 12.8 b -65.9 c -46.5 d |
0.0 a 24.8 b -1.6 c 21.3 d |
0.0 a 20.0 b 7.8 c 48.3 d |
0.0 a 17.1 b 11.3 c 29.8 d |
0.0 a 17.4 b 32.1 c 51.1 d |
0.0 a 15.1 b 54.0 c 71.2 d |
0.0 a 18.0 b 28.8 c 66.5 d |
0.0 a 16.9 b 30.1 c 50.1 d |
0.0 a 18.5 b 37.5 c 56.5 d |
0.0 a 15.3 b 49.6 c 67.1 d |
0.0 a 13.2 b 50.4 c 83.3 d |
0.0 a 15.3 b 49.6 c 67.1 d |
|||||||
B1B95 | 0.0 a 11.8 b -43.4 c -25.6 d |
0.0 a 26.2 b 21.2 c 46.9 d |
0.0 a 26.2 b 21.2 c 46.9 d |
0.0 a 21.0 b 59.6 c 74.3 d |
0.0 a 17.4 b 27.3 c 49.2 d |
0.0 a 17.8 b 48.3 c 71.1 d |
0.0 a 16.1 b 66.3 c 85.7 d |
0.0 a 17.9 b 35.0 c 54.8 d |
0.0 a 18.3 b 61.4 c 82.7 d |
0.0 a 16.9 b 45.4 c 69.0 d |
0.0 a 18.2 b 52.6 c 75.1 d |
0.0 a 15.9 b 60.4 c 81.9 d |
0.0 a 14.5 b 76.4 c 96.4 d |
0.0 a 15.9 b 60.4 c 81.9 d |
|||||
B3LYP | 0.0 a 12.6 b -52.0 c -34.5 d |
0.0 a 25.0 b 12.0 c 34.0 d |
0.0 a 25.0 b 12.0 c 34.0 d |
0.0 a 20.3 b 46.9 c 62.2 d |
0.0 a 17.1 b 20.1 c 38.4 d |
0.0 a 17.4 b 41.8 c 60.7 d |
0.0 a 15.4 b 62.4 c 77.5 d |
0.0 a 17.3 b 31.1 c 47.1 d |
0.0 a 17.8 b 56.9 c 74.3 d |
0.0 a 16.8 b 38.8 c 58.7 d |
0.0 a 14.3 b 59.1 c 76.5 d |
0.0 a 64.0 c 78.8 d |
0.0 a 18.3 b 46.7 c 65.6 d |
0.0 a 15.4 b 55.8 c 73.7 d |
0.0 a 13.7 b 73.0 c 88.7 d |
0.0 a 13.8 b 62.0 c 79.0 d |
0.0 a 15.4 b 55.8 c 73.7 d |
||
B3LYPultrafine | 0.0 a 17.1 b 20.2 c 38.5 d |
0.0 a 14.0 b 62.1 c 79.0 d |
|||||||||||||||||
B3PW91 | 0.0 a 11.6 b -42.6 c -25.7 d |
0.0 a 24.1 b 26.1 c 49.5 d |
0.0 a 24.1 b 26.1 c 49.5 d |
0.0 a 19.8 b 58.1 c 74.3 d |
0.0 a 16.5 b 29.8 c 49.4 d |
0.0 a 16.8 b 51.8 c 72.2 d |
0.0 a 15.0 b 69.2 c 86.3 d |
0.0 a 16.5 b 38.6 c |
0.0 a 17.1 b 65.2 c 84.1 d |
0.0 a 16.0 b 48.6 c 69.9 d |
0.0 a 17.3 b 55.1 c 75.2 d |
0.0 a 14.7 b 63.4 c 82.7 d |
0.0 a 13.2 b 77.8 c 95.3 d |
0.0 a 14.7 b 63.4 c 82.7 d |
|||||
mPW1PW91 | 0.0 a 12.1 b -39.0 c -21.9 d |
0.0 a 25.1 b 29.4 c 53.2 d |
0.0 a 25.0 b 29.5 c 53.4 d |
0.0 a 20.4 b 39.9 c 78.3 d |
0.0 a 17.1 b 31.6 c 51.9 d |
0.0 a 17.5 b 54.0 c 75.2 d |
0.0 a 15.7 b 71.1 c 88.9 d |
0.0 a 17.2 b 39.6 c 57.7 d |
0.0 a 17.7 b 66.7 c 86.2 d |
0.0 a 16.5 b 50.6 c 72.8 d |
0.0 a 18.0 b 56.8 c 77.7 d |
0.0 a 15.2 b 64.7 c 84.8 d |
0.0 a 13.8 b 79.1 c 97.5 d |
0.0 a 15.2 b 64.7 c 84.8 d |
|||||
M06-2X | 0.0 a 25.6 b 22.9 c 49.1 d |
0.0 a 49.0 d |
|||||||||||||||||
PBEPBE | 0.0 a 13.2 b -55.4 c -34.3 d |
0.0 a 26.1 b 13.4 c 40.9 d |
0.0 a 26.1 b 13.4 c 40.9 d |
0.0 a 21.2 b 48.0 c 66.2 d |
0.0 a 17.9 b 22.5 c 45.2 d |
0.0 a 18.3 b 44.2 c 67.6 d |
0.0 a 16.4 b 66.2 c 85.7 d |
0.0 a 18.3 b 33.4 c 53.8 d |
0.0 a 19.0 b 59.5 c 81.3 d |
0.0 a 17.6 b 41.8 c 65.9 d |
0.0 a 19.3 b 47.9 c 71.2 d |
0.0 a 16.2 b 59.6 c 81.5 d |
0.0 a 14.5 b 75.2 c 95.1 d |
0.0 a 16.2 b 59.6 c 81.5 d |
|||||
PBEPBEultrafine | 0.0 a 18.1 b 22.6 c 45.2 d |
||||||||||||||||||
PBE1PBE | 0.0 a 32.2 c 53.8 d |
||||||||||||||||||
HSEh1PBE | 0.0 a 28.3 c 53.5 d |
0.0 a 31.4 c 53.0 d |
0.0 a 71.6 c 90.5 d |
0.0 a 64.9 c 86.3 d |
|||||||||||||||
TPSSh | 0.0 a 16.5 b 9.9 c 29.0 d |
0.0 a 14.7 b 48.6 c 64.7 d |
0.0 a 15.9 b 27.0 c 48.0 d |
0.0 a 14.4 b 41.9 c 60.3 d |
|||||||||||||||
wB97X-D | 0.0 a 25.3 b 32.5 c 59.3 d |
0.0 a 18.4 b 32.7 c 55.9 d |
0.0 a 17.3 b 71.9 c |
0.0 a 19.1 b 66.6 c 89.2 d |
0.0 a 17.2 b 72.1 c 92.3 d |
0.0 a 17.3 b 71.9 c |
0.0 a 16.9 b 63.9 c |
0.0 a 15.9 b 68.7 c |
|||||||||||
B97D3 | 0.0 a 25.2 b 16.5 c 43.3 d |
0.0 a 17.9 b 22.8 c 45.7 d |
0.0 a 16.3 b 84.1 d |
0.0 a 18.8 b 58.6 c 80.5 d |
0.0 a 15.4 b 61.0 c 83.2 d |
0.0 a 16.2 b 85.7 d |
0.0 a 16.2 b 57.2 c 79.7 d |
0.0 a 14.8 b 63.7 c 85.4 d |
|||||||||||
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 a 12.0 b -31.6 c -17.2 d |
0.0 a 26.6 b 29.2 c 53.8 d |
0.0 a 26.6 b 29.2 c 53.8 d |
0.0 a 23.7 b 76.2 c 91.7 d |
0.0 a 22.5 b 45.3 c 68.7 d |
0.0 a 21.8 b 63.2 c 87.2 d |
0.0 a 22.9 b 72.9 d |
0.0 a 21.8 b 82.6 c 106.2 d |
b c d |
0.0 a 101.4 d |
0.0 a 21.5 b 72.1 c 96.4 d |
b d |
b |
|||||
MP2=FULL | 0.0 a 22.8 b 44.8 c 68.6 d |
0.0 a 23.1 b 48.1 c 74.1 d |
0.0 a 21.9 b 83.3 c 107.2 d |
||||||||||||||||
MP3 | 0.0 a 20.4 b 48.8 c 69.1 d |
||||||||||||||||||
MP3=FULL | 0.0 a 20.7 b 48.2 c 68.8 d |
0.0 a 19.3 b 95.0 d |
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B2PLYP | 0.0 a 28.5 c 48.9 d |
0.0 a 17.2 b 62.4 c 83.0 d |
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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 | 0.0 a 25.0 b 47.9 d |
|||||||||||||||||
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 a 16.1 b 65.6 c 85.9 d |
0.0 a 12.9 b 39.8 c 48.4 d |
0.0 a 17.0 b 67.1 c 89.4 d |
0.0 a 13.9 b 44.0 c 53.8 d |
0.0 a 16.7 b 68.4 c 91.3 d |
0.0 a 16.7 b 68.7 c 91.9 d |
0.0 a 12.6 b 59.9 c 73.9 d |
||
density functional | B1B95 | 0.0 a 16.6 b 75.9 c 83.7 d |
0.0 a 14.0 b 39.9 c 57.9 d |
|||||||
B3LYP | 0.0 a 16.4 b 64.2 c 72.8 d |
0.0 a 13.8 b 34.8 c 49.0 d |
0.0 a 18.4 b 41.4 c 71.7 d |
0.0 a 16.0 b 36.9 c 51.3 d |
0.0 a 18.7 b 63.8 c 76.8 d |
0.0 a 18.7 b 63.4 c 76.5 d |
0.0 a 14.4 b 60.7 c 78.1 d |
|||
PBEPBE | 0.0 a 15.3 b 64.5 c 86.0 d |
|||||||||
Moller Plesset perturbation | MP2 | 0.0 a 20.8 b 88.6 c 99.1 d |
0.0 a 19.3 b 57.7 c 76.1 d |
0.0 a 24.0 b 64.5 c 102.0 d |
0.0 a 23.2 b 58.6 c 82.0 d |
0.0 a 22.2 b 87.4 c 102.2 d |
0.0 a 22.4 b 87.7 c 102.8 d |
0.0 a 18.8 b 79.4 c 104.1 d |
6-311+G(3df,2p) | cc-pVDZ | cc-pVTZ | aug-cc-pVDZ | cc-pV(T+d)Z | ||
---|---|---|---|---|---|---|
Moller Plesset perturbation | MP2FC// HF/6-31G* | 0.0 a 28.4 b 149.4 c 111.5 d |
0.0 a 22.5 b 141.7 c 108.8 d |
0.0 a 22.5 b 141.7 c 108.8 d |
||
MP2FC// B3LYP/6-31G* | 0.0 a 21.0 b 73.6 c 97.5 d |
|||||
MP2FC// MP2FC/6-31G* | NC |
0.0 a 19.0 b 92.8 c 116.9 d |
||||
MP4// MP2/6-31G* | NC |
|||||
Coupled Cluster | CCSD// MP2FC/6-31G* | NC |
||||
CCSD(T)// MP2FC/6-31G* | NC |
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.
gaw refers to the group additivity method implemeted in the NIST Chemistry Webbook.
See section III.C.1 List or set vibrational scaling factors
to change the scale factors used here.
See section III.C.2
Calculate a vibrational scaling factor for a given set of molecules
to determine the least squares best scaling factor.