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: B3LYPultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-155.043273
Energy at 298.15K-155.049937
HF Energy-155.043273
Nuclear repulsion energy81.532896
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 B3LYPultrafine/cc-pVDZ
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' 3782 3668 18.89 115.17 0.30 0.46
2 A' 3114 3021 28.32 69.62 0.75 0.86
3 A' 3036 2945 16.63 140.41 0.01 0.02
4 A' 2954 2866 76.91 131.45 0.11 0.20
5 A' 1503 1458 2.16 4.48 0.66 0.80
6 A' 1475 1431 2.28 19.92 0.75 0.86
7 A' 1452 1408 13.01 6.24 0.58 0.74
8 A' 1383 1342 0.64 0.72 0.72 0.84
9 A' 1271 1233 81.16 4.33 0.75 0.86
10 A' 1113 1079 33.80 5.59 0.66 0.79
11 A' 1037 1006 46.34 4.22 0.14 0.25
12 A' 906 879 11.88 5.12 0.40 0.57
13 A' 413 401 10.17 0.30 0.74 0.85
14 A" 3115 3022 31.22 58.15 0.75 0.86
15 A" 2979 2890 77.91 112.21 0.75 0.86
16 A" 1452 1408 5.09 13.70 0.75 0.86
17 A" 1286 1247 0.03 9.91 0.75 0.86
18 A" 1167 1132 4.37 2.56 0.75 0.86
19 A" 819 795 0.07 0.09 0.75 0.86
20 A" 295 286 81.54 3.55 0.75 0.86
21 A" 249 242 32.22 1.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17399.9 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 16877.9 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 B3LYPultrafine/cc-pVDZ
ABC
1.15946 0.31242 0.27153

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.170 -0.412 0.000
C2 0.000 0.556 0.000
O3 -1.198 -0.213 0.000
H4 -1.944 0.402 0.000
H5 2.129 0.131 0.000
H6 1.133 -1.059 0.891
H7 1.133 -1.059 -0.891
H8 0.055 1.213 0.893
H9 0.055 1.213 -0.893

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51872.37663.21941.10191.10171.10172.16372.1637
C21.51871.42341.95052.17092.16442.16441.11001.1100
O32.37661.42340.96753.34472.63512.63512.09822.0982
H43.21941.95050.96754.08243.52153.52152.33532.3353
H51.10192.17093.34474.08241.78921.78922.50342.5034
H61.10172.16442.63513.52151.78921.78282.51453.0831
H71.10172.16442.63513.52151.78921.78283.08312.5145
H82.16371.11002.09822.33532.50342.51453.08311.7852
H92.16371.11002.09822.33532.50343.08312.51451.7852

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.716 C1 C2 H8 109.818
C1 C2 H9 109.818 C2 C1 H5 110.867
C2 C1 H6 110.366 C2 C1 H7 110.366
C2 O3 H4 107.802 O3 C2 H8 111.224
O3 C2 H9 111.224 H5 C1 H6 108.573
H5 C1 H7 108.573 H6 C1 H7 108.017
H8 C2 H9 107.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 C 0.096      
3 O -0.270      
4 H 0.136      
5 H 0.013      
6 H 0.028      
7 H 0.028      
8 H -0.001      
9 H -0.001      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.082 1.456 0.000 1.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.552 -2.190 0.000
y -2.190 -19.833 0.000
z 0.000 0.000 -20.004
Traceless
 xyz
x 2.366 -2.190 0.000
y -2.190 -1.055 0.000
z 0.000 0.000 -1.312
Polar
3z2-r2-2.623
x2-y22.281
xy-2.190
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.624 -0.199 0.000
y -0.199 4.111 0.000
z 0.000 0.000 3.733


<r2> (average value of r2) Å2
<r2> 54.316
(<r2>)1/2 7.370