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

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-5200.598132
Energy at 298.15K-5200.605889
HF Energy-5200.598132
Nuclear repulsion energy 
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 wB97X-D/3-21G
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 3294 3294 0.01      
2 A1 1720 1720 28.30      
3 A1 1238 1238 1.18      
4 A1 597 597 8.86      
5 A1 116 116 0.02      
6 A2 1038 1038 0.00      
7 A2 419 419 0.00      
8 B1 763 763 101.82      
9 B2 3268 3268 14.95      
10 B2 1350 1350 47.43      
11 B2 780 780 60.69      
12 B2 496 496 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 7539.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7539.1 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 wB97X-D/3-21G
ABC
0.27908 0.03326 0.02971

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.658 1.270
C2 0.000 -0.658 1.270
Br3 0.000 1.768 -0.281
Br4 0.000 -1.768 -0.281
H5 0.000 1.212 2.198
H6 0.000 -1.212 2.198

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31631.90712.87971.08052.0875
C21.31632.87971.90712.08751.0805
Br31.90712.87973.53672.54033.8761
Br42.87971.90713.53673.87612.5403
H51.08052.08752.54033.87612.4235
H62.08751.08053.87612.54032.4235

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 125.599 C1 C2 H6 120.820
C2 C1 Br3 125.599 C2 C1 H5 120.820
Br3 C1 H5 113.581 Br4 C2 H6 113.581
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.480      
2 C -0.480      
3 Br 0.192      
4 Br 0.192      
5 H 0.288      
6 H 0.288      


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 1.745 1.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.165 0.000 0.000
y 0.000 -47.523 0.000
z 0.000 0.000 -42.079
Traceless
 xyz
x -5.364 0.000 0.000
y 0.000 -1.401 0.000
z 0.000 0.000 6.765
Polar
3z2-r213.530
x2-y2-2.642
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.844 0.000 0.000
y 0.000 9.078 0.000
z 0.000 0.000 6.660


<r2> (average value of r2) Å2
<r2> 290.660
(<r2>)1/2 17.049