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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: HF/CEP-31G*

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-31G*
 hartrees
Energy at 0K-30.152696
Energy at 298.15K-30.159517
HF Energy-30.152696
Nuclear repulsion energy49.165610
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-31G*
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' 4158 3734 39.14 92.28 0.31 0.47
2 A' 3293 2957 80.42 63.09 0.74 0.85
3 A' 3228 2899 33.81 212.30 0.03 0.05
4 A' 3203 2876 108.47 71.19 0.21 0.35
5 A' 1663 1494 3.38 5.27 0.63 0.78
6 A' 1627 1461 3.53 16.69 0.71 0.83
7 A' 1598 1435 16.76 8.02 0.44 0.61
8 A' 1523 1368 0.67 0.88 0.08 0.16
9 A' 1386 1245 131.51 6.46 0.56 0.72
10 A' 1197 1075 38.53 11.00 0.66 0.79
11 A' 1128 1013 48.93 5.41 0.32 0.49
12 A' 968 869 9.11 10.93 0.30 0.46
13 A' 436 392 13.01 0.32 0.60 0.75
14 A" 3306 2969 93.49 40.35 0.75 0.86
15 A" 3234 2904 93.87 94.77 0.75 0.86
16 A" 1609 1445 2.90 15.30 0.75 0.86
17 A" 1404 1261 0.05 17.88 0.75 0.86
18 A" 1279 1149 8.44 1.31 0.75 0.86
19 A" 868 779 0.25 0.12 0.75 0.86
20 A" 329 295 148.88 3.72 0.75 0.86
21 A" 267 240 18.03 0.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18852.1 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 16929.2 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-31G*
ABC
1.17659 0.31097 0.27092

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.176 -0.422 0.000
C2 0.000 0.556 0.000
O3 -1.200 -0.200 0.000
H4 -1.943 0.392 0.000
H5 2.123 0.123 0.000
H6 1.137 -1.059 0.885
H7 1.137 -1.059 -0.885
H8 0.043 1.199 0.885
H9 0.043 1.199 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52942.38563.22281.09251.09091.09092.16602.1660
C21.52941.41821.94952.16672.16442.16441.09451.0945
O32.38561.41820.95023.33812.64212.64212.07012.0701
H43.22281.94950.95024.07443.51753.51752.31912.3191
H51.09252.16673.33814.07441.77491.77492.50312.5031
H61.09092.16442.64213.51751.77491.76982.50853.0701
H71.09092.16442.64213.51751.77491.76983.07012.5085
H82.16601.09452.07012.31912.50312.50853.07011.7701
H92.16601.09452.07012.31912.50313.07012.50851.7701

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.003 C1 C2 H8 110.178
C1 C2 H9 110.178 C2 C1 H5 110.350
C2 C1 H6 110.260 C2 C1 H7 110.260
C2 O3 H4 109.207 O3 C2 H8 110.282
O3 C2 H9 110.282 H5 C1 H6 108.755
H5 C1 H7 108.755 H6 C1 H7 108.410
H8 C2 H9 107.924
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 C -0.060      
3 O -0.596      
4 H 0.416      
5 H 0.103      
6 H 0.111      
7 H 0.111      
8 H 0.090      
9 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.135 1.865 0.000 1.870
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.581 -2.624 0.000
y -2.624 -19.801 0.000
z 0.000 0.000 -19.879
Traceless
 xyz
x 2.259 -2.624 0.000
y -2.624 -1.071 0.000
z 0.000 0.000 -1.187
Polar
3z2-r2-2.375
x2-y22.220
xy-2.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.079 -0.218 0.000
y -0.218 3.574 0.000
z 0.000 0.000 3.186


<r2> (average value of r2) Å2
<r2> 47.562
(<r2>)1/2 6.897