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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-154.988829
Energy at 298.15K-154.995501
Nuclear repulsion energy81.862998
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 B3PW91/6-31G**
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' 3866 3705 16.36      
2 A' 3147 3017 26.35      
3 A' 3063 2935 14.99      
4 A' 2981 2857 74.29      
5 A' 1541 1477 2.81      
6 A' 1511 1448 2.81      
7 A' 1470 1409 14.86      
8 A' 1406 1347 1.51      
9 A' 1281 1228 89.14      
10 A' 1137 1089 34.90      
11 A' 1046 1002 46.85      
12 A' 916 878 8.20      
13 A' 417 400 11.58      
14 A" 3151 3020 28.54      
15 A" 3011 2886 74.50      
16 A" 1492 1430 5.03      
17 A" 1304 1250 0.09      
18 A" 1187 1137 5.08      
19 A" 823 788 0.11      
20 A" 295 282 94.68      
21 A" 250 240 37.75      

Unscaled Zero Point Vibrational Energy (zpe) 17647.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 16913.1 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 B3PW91/6-31G**
ABC
1.17448 0.31378 0.27300

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.168 -0.414 0.000
C2 0.000 0.552 0.000
O3 -1.196 -0.209 0.000
H4 -1.938 0.405 0.000
H5 2.118 0.129 0.000
H6 1.132 -1.054 0.886
H7 1.132 -1.054 -0.886
H8 0.058 1.206 0.886
H9 0.058 1.206 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51532.37283.21201.09441.09381.09382.15382.1538
C21.51531.41741.94362.16032.15572.15571.10271.1027
O32.37281.41740.96303.33162.63082.63082.08752.0875
H43.21201.94360.96304.06593.51313.51312.32592.3259
H51.09442.16033.33164.06591.77671.77672.48812.4881
H61.09382.15572.63083.51311.77671.77152.50233.0662
H71.09382.15572.63083.51311.77671.77153.06622.5023
H82.15381.10272.08752.32592.48812.50233.06621.7726
H92.15381.10272.08752.32592.48813.06622.50231.7726

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.965 C1 C2 H8 109.702
C1 C2 H9 109.702 C2 C1 H5 110.712
C2 C1 H6 110.377 C2 C1 H7 110.377
C2 O3 H4 107.948 O3 C2 H8 111.245
O3 C2 H9 111.245 H5 C1 H6 108.577
H5 C1 H7 108.577 H6 C1 H7 108.148
H8 C2 H9 106.977
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.394      
2 C 0.003      
3 O -0.545      
4 H 0.318      
5 H 0.124      
6 H 0.143      
7 H 0.143      
8 H 0.103      
9 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.023 1.545 0.000 1.545
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 53.867
(<r2>)1/2 7.339