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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-30.161430
Energy at 298.15K-30.168252
HF Energy-30.161430
Nuclear repulsion energy49.297929
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/CEP-121G*
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' 4141 3741 33.65 93.46 0.31 0.47
2 A' 3258 2943 67.15 63.20 0.75 0.85
3 A' 3190 2882 26.69 193.27 0.02 0.04
4 A' 3165 2859 94.90 76.70 0.22 0.36
5 A' 1668 1507 3.33 5.05 0.75 0.86
6 A' 1630 1472 2.97 14.55 0.73 0.84
7 A' 1598 1443 16.70 6.71 0.42 0.59
8 A' 1529 1381 0.20 0.36 0.57 0.73
9 A' 1384 1251 127.54 2.96 0.59 0.74
10 A' 1195 1079 31.60 8.99 0.70 0.82
11 A' 1125 1016 62.42 4.49 0.22 0.37
12 A' 964 871 8.69 10.29 0.28 0.44
13 A' 440 397 12.33 0.37 0.54 0.70
14 A" 3272 2956 76.16 43.48 0.75 0.86
15 A" 3197 2888 80.02 109.02 0.75 0.86
16 A" 1613 1458 3.60 11.62 0.75 0.86
17 A" 1408 1272 0.25 11.53 0.75 0.86
18 A" 1284 1160 6.10 1.08 0.75 0.86
19 A" 874 789 0.60 0.08 0.75 0.86
20 A" 317 287 136.75 2.70 0.75 0.86
21 A" 266 240 24.02 0.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18757.8 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 16945.8 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 HF/CEP-121G*
ABC
1.18665 0.31192 0.27192

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.174 -0.417 0.000
C2 0.000 0.554 0.000
O3 -1.199 -0.202 0.000
H4 -1.941 0.386 0.000
H5 2.116 0.127 0.000
H6 1.141 -1.052 0.881
H7 1.141 -1.052 -0.881
H8 0.043 1.194 0.881
H9 0.043 1.194 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52372.38253.21671.08771.08611.08612.15732.1573
C21.52371.41661.94772.15822.15772.15771.09041.0904
O32.38251.41660.94673.33052.64032.64032.06572.0657
H43.21671.94770.94674.06453.51273.51272.31612.3161
H51.08772.15823.33054.06451.76551.76552.49222.4922
H61.08612.15772.64033.51271.76551.76122.50043.0588
H71.08612.15772.64033.51271.76551.76123.05882.5004
H82.15731.09042.06572.31612.49222.50043.05881.7625
H92.15731.09042.06572.31612.49223.05882.50041.7625

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.192 C1 C2 H8 110.123
C1 C2 H9 110.123 C2 C1 H5 110.358
C2 C1 H6 110.415 C2 C1 H7 110.415
C2 O3 H4 109.391 O3 C2 H8 110.285
O3 C2 H9 110.285 H5 C1 H6 108.620
H5 C1 H7 108.620 H6 C1 H7 108.351
H8 C2 H9 107.838
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.486      
2 C -0.008      
3 O -0.667      
4 H 0.438      
5 H 0.151      
6 H 0.163      
7 H 0.163      
8 H 0.122      
9 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.096 1.838 0.000 1.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.657 -2.677 0.000
y -2.677 -19.980 0.000
z 0.000 0.000 -20.128
Traceless
 xyz
x 2.397 -2.677 0.000
y -2.677 -1.087 0.000
z 0.000 0.000 -1.310
Polar
3z2-r2-2.620
x2-y22.323
xy-2.677
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.313 -0.116 0.000
y -0.116 3.958 0.000
z 0.000 0.000 3.718


<r2> (average value of r2) Å2
<r2> 47.512
(<r2>)1/2 6.893