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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-30.096974
Energy at 298.15K-30.103774
HF Energy-30.096974
Nuclear repulsion energy48.944903
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 HF/CEP-121G
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' 4040 3686 17.75 118.07 0.31 0.48
2 A' 3243 2960 63.53 61.63 0.73 0.85
3 A' 3160 2884 35.27 247.56 0.02 0.05
4 A' 3143 2868 77.73 30.66 0.62 0.76
5 A' 1669 1523 2.32 6.98 0.74 0.85
6 A' 1637 1494 4.54 20.78 0.75 0.85
7 A' 1577 1439 20.99 4.68 0.36 0.53
8 A' 1544 1409 0.89 0.52 0.67 0.80
9 A' 1342 1224 94.87 7.85 0.47 0.64
10 A' 1179 1076 19.47 11.01 0.67 0.81
11 A' 1122 1024 90.59 4.53 0.26 0.42
12 A' 962 878 16.36 14.02 0.26 0.41
13 A' 434 396 17.10 0.50 0.59 0.74
14 A" 3264 2978 75.44 38.49 0.75 0.86
15 A" 3196 2916 66.17 106.47 0.75 0.86
16 A" 1619 1478 5.47 14.88 0.75 0.86
17 A" 1403 1280 0.00 14.88 0.75 0.86
18 A" 1278 1166 8.05 2.65 0.75 0.86
19 A" 892 814 0.00 0.05 0.75 0.86
20 A" 305 278 179.79 4.67 0.75 0.86
21 A" 247 226 39.16 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18627.3 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 16997.4 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 HF/CEP-121G
ABC
1.16324 0.30778 0.26755

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.190 -0.387 0.000
C2 0.000 0.567 0.000
O3 -1.203 -0.237 0.000
H4 -2.004 0.278 0.000
H5 2.124 0.171 0.000
H6 1.163 -1.021 0.879
H7 1.163 -1.021 -0.879
H8 0.018 1.204 0.883
H9 0.018 1.204 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52532.39763.26241.08751.08461.08462.16412.1641
C21.52531.44732.02482.16042.15652.15651.08851.0885
O32.39761.44730.95243.35152.64332.64332.08532.0853
H43.26242.02480.95244.12913.53453.53452.39322.3932
H51.08752.16043.35154.12911.76531.76532.50592.5059
H61.08462.15652.64333.53451.76531.75852.50303.0608
H71.08462.15652.64333.53451.76531.75853.06082.5030
H82.16411.08852.08532.39322.50592.50303.06081.7650
H92.16411.08852.08532.39322.50593.06082.50301.7650

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.495 C1 C2 H8 110.668
C1 C2 H9 110.668 C2 C1 H5 110.432
C2 C1 H6 110.292 C2 C1 H7 110.292
C2 O3 H4 113.480 O3 C2 H8 109.837
O3 C2 H9 109.837 H5 C1 H6 108.726
H5 C1 H7 108.726 H6 C1 H7 108.318
H8 C2 H9 108.336
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.422      
2 C -0.000      
3 O -0.615      
4 H 0.369      
5 H 0.129      
6 H 0.154      
7 H 0.154      
8 H 0.115      
9 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.180 2.164 0.000 2.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.355 -2.922 0.000
y -2.922 -20.382 0.000
z 0.000 0.000 -20.184
Traceless
 xyz
x 2.928 -2.922 0.000
y -2.922 -1.613 0.000
z 0.000 0.000 -1.316
Polar
3z2-r2-2.632
x2-y23.027
xy-2.922
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.329 -0.061 0.000
y -0.061 3.814 0.000
z 0.000 0.000 3.552


<r2> (average value of r2) Å2
<r2> 48.060
(<r2>)1/2 6.933