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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-152.275272
Energy at 298.15K-152.281839
HF Energy-152.129568
Nuclear repulsion energy79.838530
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3870 3374 46.89 46.52 0.31 0.47
2 A' 3562 3106 1.99 25.54 0.75 0.86
3 A' 3381 2948 1.39 34.84 0.02 0.04
4 A' 3328 2901 14.06 33.34 0.16 0.28
5 A' 1747 1524 0.75 0.58 0.72 0.83
6 A' 1725 1504 2.95 24.88 0.75 0.86
7 A' 1676 1461 7.41 7.13 0.72 0.84
8 A' 1601 1396 1.71 2.67 0.75 0.85
9 A' 1467 1279 32.60 8.26 0.75 0.86
10 A' 1251 1090 1.16 5.58 0.50 0.67
11 A' 1146 999 7.08 3.42 0.36 0.52
12 A' 1002 874 0.20 6.52 0.30 0.47
13 A' 410 357 5.19 0.36 0.66 0.80
14 A" 3565 3108 2.33 21.06 0.75 0.86
15 A" 3433 2993 19.83 29.59 0.75 0.86
16 A" 1722 1501 0.75 15.92 0.75 0.86
17 A" 1417 1236 0.03 13.31 0.75 0.86
18 A" 1258 1097 7.99 3.69 0.75 0.86
19 A" 895 780 0.00 0.01 0.75 0.86
20 A" 355 309 64.03 7.56 0.75 0.86
21 A" 209 183 1.94 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19509.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 17010.1 cm-1
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.
Rotational Constants (cm-1) from geometry optimized at MP2/STO-3G
ABC
1.11995 0.29759 0.25844

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.201 -0.432 0.000
C2 0.000 0.565 0.000
O3 -1.236 -0.217 0.000
H4 -1.937 0.519 0.000
H5 2.155 0.121 0.000
H6 1.165 -1.075 0.895
H7 1.165 -1.075 -0.895
H8 0.068 1.226 0.897
H9 0.068 1.226 -0.897

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.56042.44593.27861.10301.10281.10282.19902.1990
C21.56041.46261.93772.20032.20162.20161.11621.1162
O32.44591.46261.01673.40782.70162.70162.14162.1416
H43.27861.93771.01674.11153.60033.60032.30732.3073
H51.10302.20033.40784.11151.79251.79252.52622.5262
H61.10282.20162.70163.60031.79251.78972.54913.1158
H71.10282.20162.70163.60031.79251.78973.11582.5491
H82.19901.11622.14162.30732.52622.54913.11581.7939
H92.19901.11622.14162.30732.52623.11582.54911.7939

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.974 C1 C2 H8 109.361
C1 C2 H9 109.361 C2 C1 H5 110.219
C2 C1 H6 110.337 C2 C1 H7 110.337
C2 O3 H4 101.281 O3 C2 H8 111.588
O3 C2 H9 111.588 H5 C1 H6 108.710
H5 C1 H7 108.710 H6 C1 H7 108.477
H8 C2 H9 106.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability