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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-153.222681
Energy at 298.15K-153.229476
HF Energy-153.222681
Nuclear repulsion energy81.595856
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/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' 3866 3490 8.19 134.07 0.32 0.49
2 A' 3276 2957 31.86 57.62 0.74 0.85
3 A' 3213 2900 14.83 120.38 0.02 0.05
4 A' 3180 2871 54.50 86.43 0.20 0.34
5 A' 1710 1544 2.18 8.84 0.74 0.85
6 A' 1675 1512 5.26 28.24 0.75 0.86
7 A' 1584 1430 10.91 2.96 0.49 0.65
8 A' 1573 1419 6.72 1.68 0.75 0.86
9 A' 1371 1237 92.54 8.40 0.63 0.77
10 A' 1198 1081 1.49 7.75 0.51 0.68
11 A' 1084 979 76.28 3.33 0.61 0.76
12 A' 952 859 2.78 13.25 0.26 0.41
13 A' 426 384 16.85 0.47 0.67 0.80
14 A" 3288 2968 37.10 40.33 0.75 0.86
15 A" 3206 2893 65.45 92.19 0.75 0.86
16 A" 1656 1495 4.27 22.45 0.75 0.86
17 A" 1434 1294 0.50 15.95 0.75 0.86
18 A" 1282 1157 7.63 4.90 0.75 0.86
19 A" 918 828 0.04 0.00 0.75 0.86
20 A" 313 282 158.65 7.31 0.75 0.86
21 A" 254 229 20.46 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18728.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 16904.6 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/3-21G*
ABC
1.14670 0.31373 0.27096

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.178 -0.393 0.000
C2 0.000 0.575 0.000
O3 -1.192 -0.241 0.000
H4 -1.986 0.310 0.000
H5 2.119 0.145 0.000
H6 1.127 -1.023 0.878
H7 1.127 -1.023 -0.878
H8 0.038 1.211 0.879
H9 0.038 1.211 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52472.37453.24061.08361.08211.08212.15512.1551
C21.52471.44422.00332.16252.14402.14401.08531.0853
O32.37451.44420.96613.33312.59992.59992.09532.0953
H43.24062.00330.96614.10803.49813.49812.38282.3828
H51.08362.16253.33314.10801.76601.76602.49852.4985
H61.08212.14402.59993.49811.76601.75522.48603.0439
H71.08212.14402.59993.49811.76601.75523.04392.4860
H82.15511.08532.09532.38282.49852.48603.04391.7576
H92.15511.08532.09532.38282.49853.04392.48601.7576

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 106.193 C1 C2 H8 110.187
C1 C2 H9 110.187 C2 C1 H5 110.878
C2 C1 H6 109.498 C2 C1 H7 109.498
C2 O3 H4 110.873 O3 C2 H8 111.071
O3 C2 H9 111.071 H5 C1 H6 109.264
H5 C1 H7 109.264 H6 C1 H7 108.398
H8 C2 H9 108.143
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.600      
2 C -0.093      
3 O -0.679      
4 H 0.373      
5 H 0.191      
6 H 0.221      
7 H 0.221      
8 H 0.183      
9 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.052 1.936 0.000 1.936
CHELPG 0.056 1.907 0.000 1.908
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.339 -2.577 0.000
y -2.577 -19.959 0.000
z 0.000 0.000 -20.009
Traceless
 xyz
x 2.645 -2.577 0.000
y -2.577 -1.285 0.000
z 0.000 0.000 -1.360
Polar
3z2-r2-2.720
x2-y22.620
xy-2.577
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.989 -0.115 0.000
y -0.115 3.364 0.000
z 0.000 0.000 3.088


<r2> (average value of r2) Å2
<r2> 54.197
(<r2>)1/2 7.362