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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-152.972063
Energy at 298.15K-152.978580
HF Energy-152.972063
Nuclear repulsion energy80.262467
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/STO-3G
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' 3769 3328 36.77 52.79 0.30 0.46
2 A' 3530 3117 0.48 27.98 0.75 0.86
3 A' 3355 2963 0.50 39.09 0.01 0.03
4 A' 3269 2887 15.84 40.12 0.13 0.24
5 A' 1703 1504 1.06 0.49 0.75 0.86
6 A' 1682 1485 4.23 26.73 0.75 0.86
7 A' 1631 1440 7.44 6.73 0.71 0.83
8 A' 1561 1379 0.39 2.78 0.73 0.85
9 A' 1423 1257 36.54 8.91 0.75 0.86
10 A' 1222 1079 3.66 5.11 0.48 0.65
11 A' 1120 989 8.53 3.43 0.28 0.44
12 A' 983 868 0.48 5.74 0.32 0.49
13 A' 403 356 6.37 0.35 0.69 0.81
14 A" 3532 3119 0.70 22.60 0.75 0.86
15 A" 3368 2974 18.78 33.91 0.75 0.86
16 A" 1677 1481 2.74 16.29 0.75 0.86
17 A" 1379 1217 0.07 13.25 0.75 0.86
18 A" 1225 1082 6.93 3.96 0.75 0.86
19 A" 877 774 0.83 0.01 0.75 0.86
20 A" 348 307 69.91 8.01 0.75 0.86
21 A" 208 183 2.38 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19131.8 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 16893.4 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 B1B95/STO-3G
ABC
1.13063 0.30166 0.26182

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.193 -0.420 0.000
C2 0.000 0.561 0.000
O3 -1.227 -0.226 0.000
H4 -1.938 0.507 0.000
H5 2.139 0.135 0.000
H6 1.160 -1.060 0.890
H7 1.160 -1.060 -0.890
H8 0.070 1.220 0.893
H9 0.070 1.220 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.54472.42823.26581.09691.09661.09662.17942.1794
C21.54471.45821.93922.18162.18322.18321.11211.1121
O32.42821.45821.02123.38612.68102.68102.13812.1381
H43.26581.93921.02124.09493.58443.58442.31052.3105
H51.09692.18163.38614.09491.78271.78272.50212.5021
H61.09662.18322.68103.58441.78271.77972.52753.0932
H71.09662.18322.68103.58441.78271.77973.09322.5275
H82.17941.11212.13812.31052.50212.52753.09321.7864
H92.17941.11212.13812.31052.50213.09322.52751.7864

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.885 C1 C2 H8 109.148
C1 C2 H9 109.148 C2 C1 H5 110.198
C2 C1 H6 110.339 C2 C1 H7 110.339
C2 O3 H4 101.450 O3 C2 H8 111.872
O3 C2 H9 111.872 H5 C1 H6 108.721
H5 C1 H7 108.721 H6 C1 H7 108.473
H8 C2 H9 106.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.232      
2 C -0.051      
3 O -0.255      
4 H 0.169      
5 H 0.078      
6 H 0.083      
7 H 0.083      
8 H 0.062      
9 H 0.062      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.105 1.334 0.000 1.338
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.953 -1.949 0.000
y -1.949 -18.026 0.000
z 0.000 0.000 -18.305
Traceless
 xyz
x 1.212 -1.949 0.000
y -1.949 -0.396 0.000
z 0.000 0.000 -0.816
Polar
3z2-r2-1.631
x2-y21.072
xy-1.949
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.560 -0.138 0.000
y -0.138 1.954 0.000
z 0.000 0.000 1.639


<r2> (average value of r2) Å2
<r2> 54.758
(<r2>)1/2 7.400