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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: B3PW91/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-78.566320
Energy at 298.15K-78.569510
HF Energy-78.566320
Nuclear repulsion energy33.252270
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/daug-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 Ag 3154 3154 0.00 220.38 0.10 0.18
2 Ag 1690 1690 0.00 37.04 0.01 0.02
3 Ag 1370 1370 0.00 38.89 0.22 0.36
4 Au 1079 1079 0.00 0.00 0.00 0.00
5 B1u 3140 3140 16.92 0.00 0.00 0.00
6 B1u 1455 1455 10.67 0.00 0.00 0.00
7 B2g 1028 1028 0.00 2.41 0.75 0.86
8 B2u 3253 3253 20.44 0.00 0.00 0.00
9 B2u 823 823 0.12 0.00 0.00 0.00
10 B3g 3226 3226 0.00 123.17 0.75 0.86
11 B3g 1226 1226 0.00 0.05 0.75 0.86
12 B3u 993 993 99.97 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 11218.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11218.7 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/daug-cc-pVDZ
ABC
4.85082 0.99935 0.82864

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 0.000 -0.667
H3 0.000 0.928 1.240
H4 0.000 -0.928 1.240
H5 0.000 -0.928 -1.240
H6 0.000 0.928 -1.240

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.33371.09101.09102.12062.1206
C21.33372.12062.12061.09101.0910
H31.09102.12061.85693.09772.4794
H41.09102.12061.85692.47943.0977
H52.12061.09103.09772.47941.8569
H62.12061.09102.47943.09771.8569

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 116.653 H5 C2 H6 116.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.285      
2 C 1.285      
3 H -0.643      
4 H -0.643      
5 H -0.643      
6 H -0.643      


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 -15.663 0.000 0.000
y 0.000 -12.338 0.000
z 0.000 0.000 -12.289
Traceless
 xyz
x -3.349 0.000 0.000
y 0.000 1.638 0.000
z 0.000 0.000 1.711
Polar
3z2-r23.423
x2-y2-3.325
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.367 0.000 0.000
y 0.000 3.808 0.000
z 0.000 0.000 5.339


<r2> (average value of r2) Å2
<r2> 23.320
(<r2>)1/2 4.829