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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-154.976804
Energy at 298.15K-154.983485
Nuclear repulsion energy81.818650
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' 3795 3630 14.20      
2 A' 3148 3012 27.99      
3 A' 3068 2935 15.26      
4 A' 2989 2860 75.21      
5 A' 1557 1490 2.58      
6 A' 1527 1461 3.29      
7 A' 1483 1418 15.31      
8 A' 1421 1359 1.57      
9 A' 1294 1238 90.64      
10 A' 1139 1090 32.40      
11 A' 1052 1006 47.47      
12 A' 920 880 8.24      
13 A' 418 400 11.81      
14 A" 3152 3016 30.23      
15 A" 3016 2886 77.14      
16 A" 1509 1444 5.39      
17 A" 1312 1255 0.12      
18 A" 1194 1142 5.17      
19 A" 828 792 0.09      
20 A" 302 289 103.16      
21 A" 252 241 33.23      

Unscaled Zero Point Vibrational Energy (zpe) 17686.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16921.0 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
1.17266 0.31371 0.27291

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 -0.413 0.000
C2 0.000 0.553 0.000
O3 -1.196 -0.210 0.000
H4 -1.940 0.407 0.000
H5 2.120 0.130 0.000
H6 1.132 -1.054 0.887
H7 1.132 -1.054 -0.887
H8 0.055 1.206 0.887
H9 0.055 1.206 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51562.37263.21471.09551.09481.09482.15532.1553
C21.51561.41801.94562.16112.15642.15641.10311.1031
O32.37261.41800.96683.33262.63042.63042.08702.0870
H43.21471.94560.96684.06903.51593.51592.32542.3254
H51.09552.16113.33264.06901.77871.77872.49072.4907
H61.09482.15642.63043.51591.77871.77332.50333.0681
H71.09482.15642.63043.51591.77871.77333.06812.5033
H82.15531.10312.08702.32542.49072.50333.06811.7746
H92.15531.10312.08702.32542.49073.06812.50331.7746

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.910 C1 C2 H8 109.777
C1 C2 H9 109.777 C2 C1 H5 110.694
C2 C1 H6 110.355 C2 C1 H7 110.355
C2 O3 H4 107.840 O3 C2 H8 111.140
O3 C2 H9 111.140 H5 C1 H6 108.601
H5 C1 H7 108.601 H6 C1 H7 108.165
H8 C2 H9 107.097
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 -0.512     -0.292
2 C -0.076     0.322
3 O -0.623     -0.619
4 H 0.403     0.385
5 H 0.163     0.062
6 H 0.181     0.098
7 H 0.181     0.098
8 H 0.141     -0.026
9 H 0.141     -0.026


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.022 1.582 0.000 1.582
CHELPG        
AIM        
ESP 0.006 1.551 0.000 1.551


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> 53.901
(<r2>)1/2 7.342