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: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-155.068182
Energy at 298.15K-155.074828
HF Energy-155.068182
Nuclear repulsion energy82.122197
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 mPW1PW91/Def2TZVPP
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' 3905 3905 30.40 102.19 0.25 0.40
2 A' 3139 3139 24.12 56.44 0.74 0.85
3 A' 3061 3061 14.64 155.00 0.00 0.01
4 A' 3002 3002 66.47 136.11 0.08 0.15
5 A' 1529 1529 1.72 3.43 0.66 0.80
6 A' 1501 1501 2.68 10.66 0.75 0.86
7 A' 1459 1459 11.34 2.84 0.42 0.60
8 A' 1402 1402 2.84 0.09 0.70 0.82
9 A' 1276 1276 72.73 1.86 0.74 0.85
10 A' 1127 1127 41.29 5.34 0.59 0.74
11 A' 1049 1049 48.53 4.64 0.13 0.23
12 A' 913 913 10.53 4.72 0.30 0.46
13 A' 419 419 11.11 0.31 0.69 0.82
14 A" 3141 3141 27.74 42.28 0.75 0.86
15 A" 3032 3032 50.08 96.74 0.75 0.86
16 A" 1482 1482 6.24 7.33 0.75 0.86
17 A" 1305 1305 0.01 7.30 0.75 0.86
18 A" 1183 1183 3.88 0.82 0.75 0.86
19 A" 819 819 0.23 0.09 0.75 0.86
20 A" 279 279 70.33 1.72 0.75 0.86
21 A" 241 241 49.12 0.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17632.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17632.2 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 mPW1PW91/Def2TZVPP
ABC
1.18615 0.31497 0.27439

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.168 -0.403 0.000
C2 0.000 0.550 0.000
O3 -1.193 -0.215 0.000
H4 -1.941 0.381 0.000
H5 2.110 0.146 0.000
H6 1.139 -1.041 0.883
H7 1.139 -1.041 -0.883
H8 0.044 1.197 0.884
H9 0.044 1.197 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.50782.36833.20631.09011.08971.08972.14632.1463
C21.50781.41691.94822.14792.14732.14731.09641.0964
O32.36831.41690.95643.32192.62732.62732.07412.0741
H43.20631.94820.95644.05723.50603.50602.32052.3205
H51.09012.14793.32194.05721.76921.76922.48082.4808
H61.08972.14732.62733.50601.76921.76602.49183.0550
H71.08972.14732.62733.50601.76921.76603.05502.4918
H82.14631.09642.07412.32052.48082.49183.05501.7689
H92.14631.09642.07412.32052.48083.05502.49181.7689

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.105 C1 C2 H8 110.008
C1 C2 H9 110.008 C2 C1 H5 110.510
C2 C1 H6 110.487 C2 C1 H7 110.487
C2 O3 H4 108.797 O3 C2 H8 110.589
O3 C2 H9 110.589 H5 C1 H6 108.513
H5 C1 H7 108.513 H6 C1 H7 108.259
H8 C2 H9 107.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.217      
2 C 0.016      
3 O -0.337      
4 H 0.180      
5 H 0.067      
6 H 0.082      
7 H 0.082      
8 H 0.064      
9 H 0.064      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.042 1.539 0.000 1.539
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.644 -2.341 0.000
y -2.341 -19.962 0.000
z 0.000 0.000 -20.065
Traceless
 xyz
x 2.370 -2.341 0.000
y -2.341 -1.108 0.000
z 0.000 0.000 -1.262
Polar
3z2-r2-2.524
x2-y22.318
xy-2.341
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.076 -0.166 0.000
y -0.166 4.559 0.000
z 0.000 0.000 4.205


<r2> (average value of r2) Å2
<r2> 53.875
(<r2>)1/2 7.340