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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-103.689184
Energy at 298.15K-103.696694
HF Energy-103.689184
Nuclear repulsion energy73.105619
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/LANL2DZ
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 4.33      
2 A1 1629 1566 37.44      
3 A1 1198 1151 1.72      
4 A1 529 509 10.84      
5 A1 104 100 0.02      
6 A2 909 874 0.00      
7 A2 375 360 0.00      
8 B1 696 669 118.18      
9 B2 3229 3104 17.08      
10 B2 1284 1235 44.88      
11 B2 723 695 75.51      
12 B2 448 431 5.27      

Unscaled Zero Point Vibrational Energy (zpe) 7190.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 6911.7 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 B3LYP/LANL2DZ
ABC
0.27396 0.03129 0.02808

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 1.283
C2 0.000 -0.670 1.283
Br3 0.000 1.824 -0.283
Br4 0.000 -1.824 -0.283
H5 0.000 1.230 2.213
H6 0.000 -1.230 2.213

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34041.94492.94471.08542.1154
C21.34042.94471.94492.11541.0854
Br31.94492.94473.64732.56563.9438
Br42.94471.94493.64733.94382.5656
H51.08542.11542.56563.94382.4597
H62.11541.08543.94382.56562.4597

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 126.375 C1 C2 H6 121.039
C2 C1 Br3 126.375 C2 C1 H5 121.039
Br3 C1 H5 112.586 Br4 C2 H6 112.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.288      
2 C -0.288      
3 Br 0.020      
4 Br 0.020      
5 H 0.268      
6 H 0.268      


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 -44.596 0.000 0.000
y 0.000 -42.790 0.000
z 0.000 0.000 -35.903
Traceless
 xyz
x -5.250 0.000 0.000
y 0.000 -2.540 0.000
z 0.000 0.000 7.790
Polar
3z2-r215.580
x2-y2-1.806
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.941 0.000 0.000
y 0.000 9.877 0.000
z 0.000 0.000 7.279


<r2> (average value of r2) Å2
<r2> 111.306
(<r2>)1/2 10.550