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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3PW91/cc-pCVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3PW91/cc-pCVDZ
 hartrees
Energy at 0K-78.563218
Energy at 298.15K-78.566391
HF Energy-78.563218
Nuclear repulsion energy33.247424
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 B3PW91/cc-pCVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3158 3158 0.00      
2 Ag 1702 1702 0.00      
3 Ag 1366 1366 0.00      
4 Au 1059 1059 0.00      
5 B1u 3139 3139 14.55      
6 B1u 1441 1441 8.45      
7 B2g 958 958 0.00      
8 B2u 3254 3254 18.83      
9 B2u 823 823 0.95      
10 B3g 3228 3228 0.00      
11 B3g 1224 1224 0.00      
12 B3u 966 966 81.76      

Unscaled Zero Point Vibrational Energy (zpe) 11158.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11158.3 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 B3PW91/cc-pCVDZ
ABC
4.82676 1.00155 0.82944

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pCVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.666
C2 0.000 0.000 -0.666
H3 0.000 0.931 1.240
H4 0.000 -0.931 1.240
H5 0.000 -0.931 -1.240
H6 0.000 0.931 -1.240

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33131.09371.09372.12072.1207
C21.33132.12072.12071.09371.0937
H31.09372.12071.86163.10082.4798
H41.09372.12071.86162.47983.1008
H52.12071.09373.10082.47981.8616
H62.12071.09372.47983.10081.8616

picture of Ethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.673 C1 C2 H6 121.673
C2 C1 H3 121.673 C2 C1 H4 121.673
H3 C1 H4 116.654 H5 C2 H6 116.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pCVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.093      
2 C -0.093      
3 H 0.046      
4 H 0.046      
5 H 0.046      
6 H 0.046      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.161 0.000 0.000
y 0.000 -12.160 0.000
z 0.000 0.000 -12.101
Traceless
 xyz
x -3.030 0.000 0.000
y 0.000 1.471 0.000
z 0.000 0.000 1.560
Polar
3z2-r23.119
x2-y2-3.001
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.609 0.000 0.000
y 0.000 3.176 0.000
z 0.000 0.000 4.812


<r2> (average value of r2) Å2
<r2> 23.139
(<r2>)1/2 4.810