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

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-5219.380243
Energy at 298.15K-5219.387838
HF Energy-5219.291916
Nuclear repulsion energy424.214305
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 B2PLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3295 3295 0.98      
2 A1 1659 1659 27.18      
3 A1 1210 1210 2.12      
4 A1 548 548 11.13      
5 A1 110 110 0.03      
6 A2 966 966 0.00      
7 A2 386 386 0.00      
8 B1 741 741 92.21      
9 B2 3269 3269 12.14      
10 B2 1319 1319 45.34      
11 B2 731 731 59.43      
12 B2 452 452 5.12      

Unscaled Zero Point Vibrational Energy (zpe) 7342.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7342.7 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 B2PLYP/6-31G
ABC
0.26639 0.03377 0.02997

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.304
C2 0.000 -0.665 1.304
Br3 0.000 1.754 -0.287
Br4 0.000 -1.754 -0.287
H5 0.000 1.241 2.220
H6 0.000 -1.241 2.220

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33091.92802.89581.08112.1148
C21.33092.89581.92802.11481.0811
Br31.92802.89583.50742.55853.9054
Br42.89581.92803.50743.90542.5585
H51.08112.11482.55853.90542.4821
H62.11481.08113.90542.55852.4821

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 124.363 C1 C2 H6 122.169
C2 C1 Br3 124.363 C2 C1 H5 122.169
Br3 C1 H5 113.468 Br4 C2 H6 113.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 C -0.337      
3 Br 0.129      
4 Br 0.129      
5 H 0.208      
6 H 0.208      


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 2.006 2.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.511 0.000 0.000
y 0.000 -48.856 0.000
z 0.000 0.000 -42.439
Traceless
 xyz
x -4.863 0.000 0.000
y 0.000 -2.381 0.000
z 0.000 0.000 7.244
Polar
3z2-r214.489
x2-y2-1.655
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.074 0.000 0.000
y 0.000 9.285 0.000
z 0.000 0.000 7.180


<r2> (average value of r2) Å2
<r2> 289.244
(<r2>)1/2 17.007