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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-5221.621719
Energy at 298.15K-5221.629532
HF Energy-5221.621719
Nuclear repulsion energy426.755458
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 HF/6-311G**
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 3386 3076 1.65      
2 A1 1791 1627 32.09      
3 A1 1295 1177 3.42      
4 A1 618 561 10.05      
5 A1 118 107 0.07      
6 A2 1046 951 0.00      
7 A2 418 380 0.00      
8 B1 773 702 73.76      
9 B2 3361 3054 17.86      
10 B2 1406 1278 64.18      
11 B2 819 744 72.99      
12 B2 506 460 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 7768.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 7058.0 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 HF/6-311G**
ABC
0.29387 0.03301 0.02968

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.655 1.235
C2 0.000 -0.655 1.235
Br3 0.000 1.775 -0.273
Br4 0.000 -1.775 -0.273
H5 0.000 1.194 2.162
H6 0.000 -1.194 2.162

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31081.87862.86071.07202.0685
C21.31082.86071.87862.06851.0720
Br31.87862.86073.55072.50393.8401
Br42.86071.87863.55073.84012.5039
H51.07202.06852.50393.84012.3874
H62.06851.07203.84012.50392.3874

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 126.594 C1 C2 H6 120.142
C2 C1 Br3 126.594 C2 C1 H5 120.142
Br3 C1 H5 113.264 Br4 C2 H6 113.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.176      
2 C -0.176      
3 Br 0.004      
4 Br 0.004      
5 H 0.172      
6 H 0.172      


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 2.035 2.035
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.086 0.000 0.000
y 0.000 -49.364 0.000
z 0.000 0.000 -42.622
Traceless
 xyz
x -5.093 0.000 0.000
y 0.000 -2.510 0.000
z 0.000 0.000 7.603
Polar
3z2-r215.206
x2-y2-1.722
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.885 0.000 0.000
y 0.000 10.844 0.000
z 0.000 0.000 7.488


<r2> (average value of r2) Å2
<r2> 291.301
(<r2>)1/2 17.068