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All results from a given calculation for CH3CH2OH (Ethanol)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-154.998334
Energy at 298.15K-155.004983
Nuclear repulsion energy81.745462
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 B3PW91/6-31+G**
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' 3872 3718 28.51      
2 A' 3140 3015 25.92      
3 A' 3057 2935 16.63      
4 A' 2996 2877 76.18      
5 A' 1527 1466 2.09      
6 A' 1501 1441 3.55      
7 A' 1452 1394 17.51      
8 A' 1399 1343 1.75      
9 A' 1263 1212 77.92      
10 A' 1119 1074 42.22      
11 A' 1042 1000 51.47      
12 A' 909 873 10.88      
13 A' 417 401 12.48      
14 A" 3146 3020 28.08      
15 A" 3030 2909 56.73      
16 A" 1483 1424 7.60      
17 A" 1300 1248 0.11      
18 A" 1178 1131 4.24      
19 A" 819 786 0.17      
20 A" 288 277 104.29      
21 A" 243 233 42.47      

Unscaled Zero Point Vibrational Energy (zpe) 17591.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 16889.1 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 B3PW91/6-31+G**
ABC
1.17552 0.31216 0.27193

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.173 -0.405 0.000
C2 0.000 0.553 0.000
O3 -1.198 -0.215 0.000
H4 -1.954 0.381 0.000
H5 2.119 0.147 0.000
H6 1.145 -1.046 0.886
H7 1.145 -1.046 -0.886
H8 0.044 1.202 0.889
H9 0.044 1.202 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51482.37843.22441.09501.09421.09422.15572.1557
C21.51481.42301.96132.15722.15732.15731.10121.1012
O32.37841.42300.96323.33612.63902.63902.08322.0832
H43.22441.96130.96324.07923.52503.52502.33542.3354
H51.09502.15723.33614.07921.77691.77692.49132.4913
H61.09422.15732.63903.52501.77691.77302.50293.0685
H71.09422.15732.63903.52501.77691.77303.06852.5029
H82.15571.10122.08322.33542.49132.50293.06851.7774
H92.15571.10122.08322.33542.49133.06852.50291.7774

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.077 C1 C2 H8 109.984
C1 C2 H9 109.984 C2 C1 H5 110.469
C2 C1 H6 110.521 C2 C1 H7 110.521
C2 O3 H4 109.040 O3 C2 H8 110.594
O3 C2 H9 110.594 H5 C1 H6 108.516
H5 C1 H7 108.516 H6 C1 H7 108.227
H8 C2 H9 107.616
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.477      
2 C -0.133      
3 O -0.522      
4 H 0.348      
5 H 0.159      
6 H 0.177      
7 H 0.177      
8 H 0.136      
9 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.132 1.751 0.000 1.756
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> 54.358
(<r2>)1/2 7.373