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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-153.560498
Energy at 298.15K-153.567171
HF Energy-153.219848
Nuclear repulsion energy80.301454
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 MP4/3-21G
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' 3452 3348        
2 A' 3117 3023        
3 A' 3045 2953        
4 A' 2981 2891        
5 A' 1609 1561        
6 A' 1583 1535        
7 A' 1482 1437        
8 A' 1470 1426        
9 A' 1300 1260        
10 A' 1114 1080        
11 A' 992 962        
12 A' 884 857        
13 A' 394 382        
14 A" 3126 3031        
15 A" 3008 2917        
16 A" 1565 1518        
17 A" 1336 1295        
18 A" 1195 1159        
19 A" 861 835        
20 A" 311 302        
21 A" 244 237        

Unscaled Zero Point Vibrational Energy (zpe) 17533.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 17003.8 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 MP4/3-21G
ABC
1.09508 0.30700 0.26386

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.192 -0.387 0.000
C2 0.000 0.589 0.000
O3 -1.207 -0.266 0.000
H4 -1.999 0.337 0.000
H5 2.143 0.162 0.000
H6 1.137 -1.025 0.891
H7 1.137 -1.025 -0.891
H8 0.042 1.236 0.893
H9 0.042 1.236 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.54052.40153.27161.09871.09721.09722.18082.1808
C21.54051.47902.01442.18552.16642.16641.10391.1039
O32.40151.47900.99563.37742.62032.62032.14842.1484
H43.27162.01440.99564.14573.53353.53352.40242.4024
H51.09872.18553.37744.14571.79291.79292.52342.5234
H61.09722.16642.62033.53351.79291.78252.51283.0819
H71.09722.16642.62033.53351.79291.78253.08192.5128
H82.18081.10392.14842.40242.52342.51283.08191.7861
H92.18081.10392.14842.40242.52343.08192.51281.7861

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.354 C1 C2 H8 110.009
C1 C2 H9 110.009 C2 C1 H5 110.691
C2 C1 H6 109.274 C2 C1 H7 109.274
C2 O3 H4 107.373 O3 C2 H8 111.736
O3 C2 H9 111.736 H5 C1 H6 109.463
H5 C1 H7 109.463 H6 C1 H7 108.642
H8 C2 H9 107.992
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability