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All results from a given calculation for CHBrCHBr (Ethene, 1,2-dibromo-, (Z)-)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-104.116481
Energy at 298.15K-104.123997
HF Energy-104.116481
Nuclear repulsion energy73.282941
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3257 3131 3.89      
2 A1 1629 1566 40.70      
3 A1 1192 1146 2.05      
4 A1 537 516 11.19      
5 A1 106 102 0.01      
6 A2 903 869 0.00      
7 A2 372 357 0.00      
8 B1 694 667 120.05      
9 B2 3229 3104 21.61      
10 B2 1281 1231 49.28      
11 B2 728 700 87.43      
12 B2 449 432 4.93      

Unscaled Zero Point Vibrational Energy (zpe) 7187.9 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 6909.8 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/SDD
ABC
0.27550 0.03156 0.02831

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 1.279
C2 0.000 -0.670 1.279
Br3 0.000 1.816 -0.282
Br4 0.000 -1.816 -0.282
H5 0.000 1.234 2.207
H6 0.000 -1.234 2.207

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34081.93652.93581.08582.1187
C21.34082.93581.93652.11871.0858
Br31.93652.93583.63142.55653.9369
Br42.93581.93653.63143.93692.5565
H51.08582.11872.55653.93692.4684
H62.11871.08583.93692.55652.4684

picture of Ethene, 1,2-dibromo-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 126.259 C1 C2 H6 121.279
C2 C1 Br3 126.259 C2 C1 H5 121.279
Br3 C1 H5 112.462 Br4 C2 H6 112.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.316      
2 C -0.316      
3 Br 0.056      
4 Br 0.056      
5 H 0.259      
6 H 0.259      


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 2.042 2.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.451 0.000 0.000
y 0.000 -42.554 0.000
z 0.000 0.000 -35.392
Traceless
 xyz
x -5.478 0.000 0.000
y 0.000 -2.632 0.000
z 0.000 0.000 8.110
Polar
3z2-r216.221
x2-y2-1.897
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.420 0.000 0.000
y 0.000 10.442 0.000
z 0.000 0.000 7.563


<r2> (average value of r2) Å2
<r2> 110.571
(<r2>)1/2 10.515