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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-154.097861
Energy at 298.15K-154.104551
HF Energy-154.097861
Nuclear repulsion energy81.286972
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 B1B95/3-21G
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' 3543 3390 0.40 140.57 0.31 0.48
2 A' 3173 3035 20.95 54.58 0.75 0.86
3 A' 3092 2959 10.62 98.56 0.01 0.03
4 A' 3016 2885 55.57 100.29 0.14 0.25
5 A' 1596 1527 1.97 6.68 0.69 0.82
6 A' 1571 1503 6.55 31.34 0.75 0.86
7 A' 1475 1411 7.72 3.74 0.65 0.79
8 A' 1457 1394 11.21 2.31 0.70 0.82
9 A' 1292 1236 70.69 10.48 0.75 0.85
10 A' 1126 1078 5.92 6.46 0.46 0.63
11 A' 1024 980 59.45 2.18 0.19 0.32
12 A' 914 874 9.28 6.96 0.35 0.52
13 A' 396 379 15.27 0.29 0.74 0.85
14 A" 3177 3040 23.62 42.41 0.75 0.86
15 A" 3045 2914 69.11 85.56 0.75 0.86
16 A" 1548 1481 6.89 21.18 0.75 0.86
17 A" 1331 1273 1.83 15.38 0.75 0.86
18 A" 1187 1136 4.23 7.26 0.75 0.86
19 A" 863 826 0.45 0.05 0.75 0.86
20 A" 315 301 133.92 8.43 0.75 0.86
21 A" 243 232 19.16 0.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17692.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16926.5 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 B1B95/3-21G
ABC
1.12094 0.31571 0.27145

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.172 -0.388 0.000
C2 0.000 0.580 0.000
O3 -1.189 -0.255 0.000
H4 -1.980 0.338 0.000
H5 2.123 0.149 0.000
H6 1.115 -1.024 0.885
H7 1.115 -1.024 -0.885
H8 0.051 1.225 0.888
H9 0.051 1.225 -0.888

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52032.36463.23521.09181.09101.09102.15582.1558
C21.52031.45241.99512.16642.14432.14431.09841.0984
O32.36461.45240.98913.33612.58462.58462.12472.1247
H43.23521.99510.98914.10783.49553.49552.38772.3877
H51.09182.16643.33614.10781.78161.78162.49802.4980
H61.09102.14432.58463.49551.78161.76962.48793.0547
H71.09102.14432.58463.49551.78161.76963.05472.4879
H82.15581.09842.12472.38772.49802.48793.05471.7752
H92.15581.09842.12472.38772.49803.05472.48791.7752

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.370 C1 C2 H8 109.765
C1 C2 H9 109.765 C2 C1 H5 111.005
C2 C1 H6 109.298 C2 C1 H7 109.298
C2 O3 H4 108.098 O3 C2 H8 112.055
O3 C2 H9 112.055 H5 C1 H6 109.407
H5 C1 H7 109.407 H6 C1 H7 108.380
H8 C2 H9 107.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.614      
2 C -0.186      
3 O -0.569      
4 H 0.346      
5 H 0.198      
6 H 0.225      
7 H 0.225      
8 H 0.188      
9 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.087 1.726 0.000 1.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.945 -2.399 0.000
y -2.399 -19.685 0.000
z 0.000 0.000 -19.770
Traceless
 xyz
x 2.783 -2.399 0.000
y -2.399 -1.327 0.000
z 0.000 0.000 -1.456
Polar
3z2-r2-2.911
x2-y22.740
xy-2.399
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.193 -0.120 0.000
y -0.120 3.538 0.000
z 0.000 0.000 3.173


<r2> (average value of r2) Å2
<r2> 54.027
(<r2>)1/2 7.350