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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-5224.772673
Energy at 298.15K-5224.780201
HF Energy-5224.772673
Nuclear repulsion energy425.099926
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 PBEPBE/cc-pVDZ
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 3155 3137 0.10      
2 A1 1594 1584 40.11      
3 A1 1119 1112 0.89      
4 A1 584 581 8.86      
5 A1 104 103 0.02      
6 A2 826 821 0.00      
7 A2 370 368 0.00      
8 B1 649 645 60.21      
9 B2 3133 3115 15.40      
10 B2 1216 1209 39.74      
11 B2 744 740 70.39      
12 B2 468 465 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 6980.5 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6940.0 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 PBEPBE/cc-pVDZ
ABC
0.28451 0.03310 0.02965

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.672 1.254
C2 0.000 -0.672 1.254
Br3 0.000 1.772 -0.278
Br4 0.000 -1.772 -0.278
H5 0.000 1.230 2.201
H6 0.000 -1.230 2.201

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34311.88642.88411.09942.1245
C21.34312.88411.88642.12451.0994
Br31.88642.88413.54352.53753.8934
Br42.88411.88643.54353.89342.5375
H51.09942.12452.53753.89342.4608
H62.12451.09943.89342.53752.4608

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 125.677 C1 C2 H6 120.552
C2 C1 Br3 125.677 C2 C1 H5 120.552
Br3 C1 H5 113.771 Br4 C2 H6 113.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C -0.079      
3 Br 0.008      
4 Br 0.008      
5 H 0.070      
6 H 0.070      


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 1.442 1.442
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.846 0.000 0.000
y 0.000 -47.439 0.000
z 0.000 0.000 -42.252
Traceless
 xyz
x -5.000 0.000 0.000
y 0.000 -1.391 0.000
z 0.000 0.000 6.391
Polar
3z2-r212.781
x2-y2-2.406
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.778 0.000 0.000
y 0.000 11.093 0.000
z 0.000 0.000 8.066


<r2> (average value of r2) Å2
<r2> 291.202
(<r2>)1/2 17.065