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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-154.106009
Energy at 298.15K-154.112607
HF Energy-154.106009
Nuclear repulsion energy80.124377
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 BLYP/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' 3287 3265 8.92 148.10 0.32 0.48
2 A' 3053 3033 27.83 56.27 0.75 0.86
3 A' 2988 2969 13.51 99.87 0.01 0.02
4 A' 2886 2867 66.61 104.62 0.14 0.24
5 A' 1557 1547 1.95 4.03 0.63 0.77
6 A' 1536 1526 6.44 36.32 0.75 0.85
7 A' 1430 1421 8.34 4.29 0.72 0.84
8 A' 1418 1409 6.81 3.45 0.66 0.79
9 A' 1262 1254 62.22 12.86 0.74 0.85
10 A' 1078 1071 1.44 6.16 0.41 0.58
11 A' 956 950 51.23 2.55 0.20 0.33
12 A' 858 852 14.58 5.80 0.37 0.54
13 A' 386 383 12.66 0.30 0.75 0.86
14 A" 3058 3038 32.28 44.07 0.75 0.86
15 A" 2903 2884 86.24 90.21 0.75 0.86
16 A" 1515 1505 5.17 21.46 0.75 0.86
17 A" 1287 1279 1.96 15.56 0.75 0.86
18 A" 1143 1136 2.15 9.96 0.75 0.86
19 A" 843 837 0.24 0.09 0.75 0.86
20 A" 312 310 111.37 10.30 0.75 0.86
21 A" 232 231 15.80 0.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16993.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 16882.8 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 BLYP/3-21G*
ABC
1.08987 0.30648 0.26334

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.190 -0.392 0.000
C2 0.000 0.588 0.000
O3 -1.209 -0.264 0.000
H4 -2.001 0.363 0.000
H5 2.145 0.157 0.000
H6 1.137 -1.033 0.893
H7 1.137 -1.033 -0.893
H8 0.056 1.241 0.896
H9 0.056 1.241 -0.896

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.54122.40243.27891.10191.10101.10102.18052.1805
C21.54121.47892.01322.18822.17192.17191.11041.1104
O32.40241.47891.01043.38082.62552.62552.16052.1605
H43.27892.01321.01044.15133.54893.54892.40882.4088
H51.10192.18823.38084.15131.79751.79752.51872.5187
H61.10102.17192.62553.54891.79751.78702.51773.0889
H71.10102.17192.62553.54891.79751.78703.08892.5177
H82.18051.11042.16052.40882.51872.51773.08891.7923
H92.18051.11042.16052.40882.51873.08892.51771.7923

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.383 C1 C2 H8 109.573
C1 C2 H9 109.573 C2 C1 H5 110.672
C2 C1 H6 109.448 C2 C1 H7 109.448
C2 O3 H4 106.428 O3 C2 H8 112.329
O3 C2 H9 112.329 H5 C1 H6 109.372
H5 C1 H7 109.372 H6 C1 H7 108.493
H8 C2 H9 107.622
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 C -0.148      
3 O -0.502      
4 H 0.313      
5 H 0.168      
6 H 0.191      
7 H 0.191      
8 H 0.155      
9 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.100 1.578 0.000 1.581
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.241 -2.288 0.000
y -2.288 -19.846 0.000
z 0.000 0.000 -19.979
Traceless
 xyz
x 2.671 -2.288 0.000
y -2.288 -1.235 0.000
z 0.000 0.000 -1.436
Polar
3z2-r2-2.872
x2-y22.604
xy-2.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.455 -0.134 0.000
y -0.134 3.689 0.000
z 0.000 0.000 3.256


<r2> (average value of r2) Å2
<r2> 55.392
(<r2>)1/2 7.443