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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: Experimental > One molecule all properties |
Other names |
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Absolute ethanol; Alcohol; Ethanol; Ethyl alcohol; EtOH; Grain alcohol; Methylcarbinol; |
INChI | INChIKey | SMILES | IUPAC name |
---|---|---|---|
InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3 | LFQSCWFLJHTTHZ-UHFFFAOYSA-N | CCO | Ethanol |
State | Conformation |
---|---|
1A' | CS |
Property | Value | Uncertainty | units | Reference | Comment |
---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-234.80 | 0.50 | kJ mol-1 | Gurvich | |
Hfg(0K) ![]() |
-217.08 | 0.50 | kJ mol-1 | Gurvich | |
Entropy (298.15K) ![]() |
281.62 | J K-1 mol-1 | Gurvich | ||
Integrated Heat Capacity (0 to 298.15K) ![]() |
14.13 | kJ mol-1 | Gurvich | ||
Heat Capacity (298.15K) ![]() |
65.65 | J K-1 mol-1 | Gurvich | ||
Barrier to Internal Rotation | 15.9 | kJ mol-1 | 1980Kak/Qua:4300 | V1=57.0 V2=0.8 V3=395.0 cm-1 |
Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
---|---|---|---|---|---|---|---|---|---|
Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
1 | A' | 3653 | 1998Cou/Bou:5789 | matrix | OH stretch | ||||
2 | A' | 2984 | CH stretch | ||||||
3 | A' | 2939 | CH stretch | ||||||
4 | A' | 2900 | CH stretch | ||||||
5 | A' | 1490 | |||||||
6 | A' | 1464 | |||||||
7 | A' | 1412 | |||||||
8 | A' | 1371 | |||||||
9 | A' | 1256 | |||||||
10 | A' | 1091 | |||||||
11 | A' | 1028 | |||||||
12 | A' | 888 | |||||||
13 | A' | 417 | |||||||
14 | A" | 2991 | CH stretch | ||||||
15 | A" | 2910 | CH stretch | ||||||
16 | A" | 1446 | |||||||
17 | A" | 1275 | |||||||
18 | A" | 1161 | |||||||
19 | A" | 812 | |||||||
20 | A" | 251 | 1975Dur/Buc:988 | Internal rotation | |||||
21 | A" | 200 | Internal rotation |
A | B | C | reference | comment |
---|---|---|---|---|
1.16386 | 0.31190 | 0.27136 | 1980Kak/Qua:4300-4307 | trans |
Product of moments of inertia ![]() | ||||
---|---|---|---|---|
48631.71 | amu3Å6 | 2.22683224808297E-115 | gm3 cm6 |
Point Group Cs
Description | Value | unc. | Connectivity | Reference | Comment | |||
---|---|---|---|---|---|---|---|---|
Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
rOH | 0.971 | 3 | 4 | 1998Cou/Bou:5789 | ||||
rCO | 1.431 | 2 | 3 | 1998Cou/Bou:5789 | ||||
rCC | 1.512 | 1 | 2 | 1998Cou/Bou:5789 | ||||
rCH | 1.088 | 1 | 5 | 1998Cou/Bou:5789 | methyl | |||
rCH | 1.098 | 1 | 6 | 1998Cou/Bou:5789 | methyl | |||
rCH | 1.086 | 2 | 8 | 1998Cou/Bou:5789 | methylene | |||
aCCO | 107.8 | 1 | 2 | 3 | 1998Cou/Bou:5789 | |||
aHOC | 105.4 | 2 | 3 | 4 | 1998Cou/Bou:5789 |
Atom | x (Å) | y (Å) | z (Å) |
---|---|---|---|
C1 | 1.1879 | -0.3829 | 0.0000 |
C2 | 0.0000 | 0.5526 | 0.0000 |
O3 | -1.1867 | -0.2472 | 0.0000 |
H4 | -1.9237 | 0.3850 | 0.0000 |
H5 | 2.0985 | 0.2306 | 0.0000 |
H6 | 1.1184 | -1.0093 | 0.8869 |
H7 | 1.1184 | -1.0093 | -0.8869 |
H8 | -0.0227 | 1.1812 | 0.8852 |
H9 | -0.0227 | 1.1812 | -0.8852 |
C1 | C2 | O3 | H4 | H5 | H6 | H7 | H8 | H9 | |
---|---|---|---|---|---|---|---|---|---|
C1 | 1.5120 | 2.3784 | 3.2049 | 1.0980 | 1.0880 | 1.0880 | 2.1670 | 2.1670 | |
C2 | 1.5120 | 1.4310 | 1.9310 | 2.1230 | 2.1158 | 2.1158 | 1.0860 | 1.0860 | |
O3 | 2.3784 | 1.4310 | 0.9710 | 3.3197 | 2.5847 | 2.5847 | 2.0442 | 2.0442 | |
H4 | 3.2049 | 1.9310 | 0.9710 | 4.0251 | 3.4619 | 3.4619 | 2.2431 | 2.2431 | |
H5 | 1.0980 | 2.1230 | 3.3197 | 4.0251 | 1.8123 | 1.8123 | 2.4873 | 2.4873 | |
H6 | 1.0880 | 2.1158 | 2.5847 | 3.4619 | 1.8123 | 1.7738 | 2.4699 | 3.0399 | |
H7 | 1.0880 | 2.1158 | 2.5847 | 3.4619 | 1.8123 | 1.7738 | 3.0399 | 2.4699 | |
H8 | 2.1670 | 1.0860 | 2.0442 | 2.2431 | 2.4873 | 2.4699 | 3.0399 | 1.7705 | |
H9 | 2.1670 | 1.0860 | 2.0442 | 2.2431 | 2.4873 | 3.0399 | 2.4699 | 1.7705 |
Experimental Bond Angles (degrees) from cartesians
atom1 | atom2 | atom3 | angle | atom1 | atom2 | atom3 | angle | |
---|---|---|---|---|---|---|---|---|
C1 | C2 | O3 | 107.800 | C1 | C2 | H8 | 111.999 | |
C1 | C2 | H9 | 111.999 | C2 | C1 | H5 | 107.810 | |
C2 | C1 | H6 | 107.820 | C2 | C1 | H7 | 107.820 | |
C2 | O3 | H4 | 105.400 | O3 | C2 | H8 | 107.830 | |
O3 | C2 | H9 | 107.830 | H5 | C1 | H6 | 111.999 | |
H5 | C1 | H7 | 111.999 | H6 | C1 | H7 | 109.211 | |
H8 | C2 | H9 | 109.202 |
Bond descriptions
Bond Type | Count |
---|---|
H-O | 1 |
C-O | 1 |
C-C | 1 |
H-C | 5 |
Atom 1 | Atom 2 |
---|---|
C1 | C2 |
C1 | H5 |
C1 | H6 |
C1 | H7 |
C2 | O3 |
C2 | H8 |
C2 | H9 |
O3 | H4 |
Energy (cm-1) | Degeneracy | reference | description |
---|---|---|---|
0 | 1 | 1A' |
Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
---|---|---|---|---|
10.480 | 0.070 | 10.640 | webbook |
State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x | y | z | total | dipole | quadrupole | ||||||||
1 | 1 | 1A' | Cs | True | 0.060 | 1.510 | 0.080 | 1.520 | 1974Hel/Hel(II/6) | μ0 for CH3CHDOH. Value of 1.441 D for CH3CH2OH seems low | Cs | 2 | 3 |
1 | 2 | 1A | C1 | False | 1.264 | 0.104 | 1.101 | 1.679 | 1980Kak/Qua:4300-4307 | μ0 MW | C1 | 3 | 5 |
State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
xx | yy | zz | dipole | quadrupole | ||||||||
1 | 1 | 1A' | Cs | True | Cs | 2 | 3 | |||||
1 | 2 | 1A | C1 | False | C1 | 3 | 5 |
alpha | unc. | Reference |
---|---|---|
5.112 | 1984Gra/Gub |
squib | reference | DOI |
---|---|---|
1974Hel/Hel(II/6) | Hellwege, KH and AM Hellwege (eds.). Landolt-Bornstein: Group II: Volume 6 Molecular Constants from Microwave, Molecular Beam, and Electron Spin Resonance Spectroscopy Springer-Verlag. Berlin. 1974. | 10.1007/b19951 |
1975Dur/Buc:988 | JR Durig, WE Bucy, CJ Wurrey, LA Carreira "Raman Spectra of Gases XVI. Torsional Transitions in Ethanol and Ethanethiol" J. Phys. Chem. 79(10) 988, 1975 | 10.1021/j100577a009 |
1980Kak/Qua:4300 | RK Kakar, CR Quade "Microwave rotational spectrum, and internal rotation in gauche ethyl alcohol" J. Chem. Phys. 72(8), 4300, 1980 | 10.1063/1.439723 |
1980Kak/Qua:4300-4307 | RK Kakar, CR Quade "Microwave rotational spectrum and internal rotation in gauche ethyl alcohol" J. Chem. Phys. 72, 4300 (1980) | 10.1063/1.439723 |
1984Gra/Gub | CG Gray, KE Gubbins "Theory of molecular fluids. Volume 1:Fundamentals" Clarendon Press, Oxford 1984 | |
1998Cou/Bou:5789 | Coussan, Bouteiller, Perchard, Zheng, Rotational Isomerism of Ethanol and Matrix Isolation Infrared Spectroscopy, J. Phys. Chem. A, Vol. 102, #29, pgs. 5789-5793 | 10.1021/jp9805961 |
Gurvich | Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989 | |
webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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