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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-155.012362
Energy at 298.15K-155.019023
HF Energy-155.012362
Nuclear repulsion energy82.089235
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 mPW1PW91/6-31G(2df,p)
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' 3903 3726 23.49 94.52 0.29 0.45
2 A' 3157 3014 23.09 57.32 0.75 0.85
3 A' 3069 2930 14.20 109.02 0.01 0.01
4 A' 2992 2856 67.30 107.64 0.11 0.19
5 A' 1534 1465 2.23 3.63 0.63 0.78
6 A' 1503 1435 2.16 19.69 0.75 0.85
7 A' 1470 1404 12.94 3.33 0.61 0.76
8 A' 1399 1335 1.95 0.87 0.71 0.83
9 A' 1286 1227 80.12 4.45 0.75 0.86
10 A' 1144 1093 39.02 4.96 0.58 0.73
11 A' 1049 1001 39.77 3.77 0.13 0.22
12 A' 918 876 7.81 5.06 0.34 0.51
13 A' 415 396 10.30 0.26 0.68 0.81
14 A" 3157 3014 25.53 46.02 0.75 0.86
15 A" 3022 2885 62.77 86.07 0.75 0.86
16 A" 1484 1417 4.69 13.66 0.75 0.86
17 A" 1304 1245 0.01 10.73 0.75 0.86
18 A" 1188 1134 4.75 1.77 0.75 0.86
19 A" 818 781 0.13 0.08 0.75 0.86
20 A" 289 276 86.60 2.76 0.75 0.86
21 A" 243 232 28.89 0.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17670.9 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 16870.4 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 mPW1PW91/6-31G(2df,p)
ABC
1.18066 0.31542 0.27450

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.164 -0.416 0.000
C2 0.000 0.551 0.000
O3 -1.193 -0.204 0.000
H4 -1.930 0.407 0.000
H5 2.114 0.124 0.000
H6 1.127 -1.056 0.885
H7 1.127 -1.056 -0.885
H8 0.058 1.203 0.885
H9 0.058 1.203 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51332.36643.20201.09251.09241.09242.15122.1512
C21.51331.41111.93552.15662.15262.15261.10081.1008
O32.36641.41110.95753.32282.62482.62482.07952.0795
H43.20201.93550.95754.05413.50273.50272.31702.3170
H51.09252.15663.32284.05411.77441.77442.48502.4850
H61.09242.15262.62483.50271.77441.76912.49893.0620
H71.09242.15262.62483.50271.77441.76913.06202.4989
H82.15121.10082.07952.31702.48502.49893.06201.7700
H92.15121.10082.07952.31702.48503.06202.49891.7700

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.988 C1 C2 H8 109.755
C1 C2 H9 109.755 C2 C1 H5 110.679
C2 C1 H6 110.364 C2 C1 H7 110.364
C2 O3 H4 108.073 O3 C2 H8 111.160
O3 C2 H9 111.160 H5 C1 H6 108.610
H5 C1 H7 108.610 H6 C1 H7 108.144
H8 C2 H9 107.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.434      
2 C -0.082      
3 O -0.449      
4 H 0.304      
5 H 0.138      
6 H 0.152      
7 H 0.152      
8 H 0.110      
9 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.023 1.430 0.000 1.430
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.268 -2.243 0.000
y -2.243 -19.432 0.000
z 0.000 0.000 -19.661
Traceless
 xyz
x 2.279 -2.243 0.000
y -2.243 -0.968 0.000
z 0.000 0.000 -1.311
Polar
3z2-r2-2.622
x2-y22.164
xy-2.243
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.535 -0.165 0.000
y -0.165 4.026 0.000
z 0.000 0.000 3.733


<r2> (average value of r2) Å2
<r2> 53.612
(<r2>)1/2 7.322