return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-154.044445
Energy at 298.15K-154.051232
HF Energy-154.044445
Nuclear repulsion energy81.573851
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/LANL2DZ
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' 4066 3659 24.52 116.55 0.31 0.48
2 A' 3294 2964 66.53 54.62 0.74 0.85
3 A' 3215 2894 42.90 259.87 0.03 0.06
4 A' 3202 2881 81.48 20.02 0.75 0.86
5 A' 1677 1509 2.59 6.41 0.74 0.85
6 A' 1650 1485 5.96 19.05 0.75 0.85
7 A' 1584 1425 20.31 3.47 0.32 0.48
8 A' 1560 1404 0.76 0.35 0.69 0.82
9 A' 1348 1213 94.47 12.06 0.43 0.60
10 A' 1188 1069 13.14 10.05 0.63 0.78
11 A' 1126 1013 96.11 4.90 0.43 0.60
12 A' 964 868 15.51 14.91 0.24 0.39
13 A' 439 395 18.27 0.47 0.59 0.75
14 A" 3313 2981 78.96 34.40 0.75 0.86
15 A" 3248 2923 69.75 86.59 0.75 0.86
16 A" 1630 1467 6.67 14.82 0.75 0.86
17 A" 1417 1275 0.06 17.16 0.75 0.86
18 A" 1286 1157 8.76 3.11 0.75 0.86
19 A" 905 814 0.37 0.22 0.75 0.86
20 A" 306 275 184.51 5.78 0.75 0.86
21 A" 251 226 43.97 0.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18833.3 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 16948.1 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/LANL2DZ
ABC
1.16755 0.30984 0.26920

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.186 -0.384 0.000
C2 0.000 0.567 0.000
O3 -1.198 -0.238 0.000
H4 -2.005 0.268 0.000
H5 2.119 0.170 0.000
H6 1.158 -1.018 0.877
H7 1.158 -1.018 -0.877
H8 0.019 1.203 0.880
H9 0.019 1.203 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52062.38873.25751.08511.08261.08262.15772.1577
C21.52061.44332.02772.15582.15032.15031.08571.0857
O32.38871.44330.95263.34192.63242.63242.08082.0808
H43.25752.02770.95264.12553.52573.52572.39712.3971
H51.08512.15583.34194.12551.76211.76212.50022.5002
H61.08262.15032.63243.52571.76211.75432.49603.0525
H71.08262.15032.63243.52571.76211.75433.05252.4960
H82.15771.08572.08082.39712.50022.49603.05251.7602
H92.15771.08572.08082.39712.50023.05252.49601.7602

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.369 C1 C2 H8 110.655
C1 C2 H9 110.655 C2 C1 H5 110.539
C2 C1 H6 110.249 C2 C1 H7 110.249
C2 O3 H4 114.057 O3 C2 H8 109.922
O3 C2 H9 109.922 H5 C1 H6 108.756
H5 C1 H7 108.756 H6 C1 H7 108.234
H8 C2 H9 108.318
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.515      
2 C -0.066      
3 O -0.645      
4 H 0.389      
5 H 0.154      
6 H 0.190      
7 H 0.190      
8 H 0.151      
9 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.157 2.184 0.000 2.190
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.248 -2.873 0.000
y -2.873 -20.262 0.000
z 0.000 0.000 -20.080
Traceless
 xyz
x 2.923 -2.873 0.000
y -2.873 -1.599 0.000
z 0.000 0.000 -1.325
Polar
3z2-r2-2.649
x2-y23.015
xy-2.873
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.046 -0.076 0.000
y -0.076 3.434 0.000
z 0.000 0.000 3.135


<r2> (average value of r2) Å2
<r2> 54.531
(<r2>)1/2 7.385