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 CH2CHOH (ethenol)

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-29.643551
Energy at 298.15K-29.647607
Nuclear repulsion energy39.372051
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 B3LYP/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' 3778 3648 21.24      
2 A' 3246 3134 25.37      
3 A' 3200 3090 5.04      
4 A' 3151 3043 7.50      
5 A' 1707 1648 168.11      
6 A' 1430 1381 21.01      
7 A' 1338 1292 4.96      
8 A' 1286 1242 2.40      
9 A' 1115 1077 207.80      
10 A' 929 897 6.38      
11 A' 469 452 12.75      
12 A" 966 933 61.10      
13 A" 783 756 94.34      
14 A" 685 662 0.18      
15 A" 458 442 121.86      

Unscaled Zero Point Vibrational Energy (zpe) 12269.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 11848.2 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 B3LYP/CEP-31G*
ABC
1.95184 0.33977 0.28939

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.237 -0.132 0.000
C2 0.000 0.452 0.000
O3 -1.216 -0.198 0.000
H4 1.373 -1.220 0.000
H5 2.128 0.502 0.000
H6 -0.145 1.537 0.000
H7 -1.045 -1.158 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.36752.45401.09681.09372.16642.5019
C21.36751.37892.16342.12901.09431.9192
O32.45401.37892.78383.41702.03820.9754
H41.09682.16342.78381.88033.14712.4187
H51.09372.12903.41701.88032.49813.5811
H62.16641.09432.03823.14712.49812.8406
H72.50191.91920.97542.41873.58112.8406

picture of ethenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 126.637 C1 C2 H6 122.894
C2 C1 H4 122.393 C2 C1 H5 119.346
C2 O3 H7 107.983 O3 C2 H6 110.469
H4 C1 H5 118.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.501      
2 C -0.160      
3 O -0.348      
4 H 0.202      
5 H 0.197      
6 H 0.238      
7 H 0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.643 -0.833 0.000 1.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.077 1.478 0.000
y 1.478 -13.733 0.000
z 0.000 0.000 -20.991
Traceless
 xyz
x -2.715 1.478 0.000
y 1.478 6.801 0.000
z 0.000 0.000 -4.086
Polar
3z2-r2-8.173
x2-y2-6.344
xy1.478
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.463 -0.528 0.000
y -0.528 3.674 0.000
z 0.000 0.000 2.049


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000