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

using model chemistry: PBEPBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at PBEPBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-5224.788721
Energy at 298.15K-5224.795945
HF Energy-5224.788721
Nuclear repulsion energy386.460867
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/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3154 3128 0.00      
2 Ag 1574 1562 0.00      
3 Ag 1232 1222 0.00      
4 Ag 734 728 0.00      
5 Ag 215 213 0.00      
6 Au 888 880 48.90      
7 Au 165 164 0.00      
8 Bg 727 721 0.00      
9 Bu 3151 3125 13.54      
10 Bu 1136 1127 34.25      
11 Bu 677 671 83.26      
12 Bu 190 188 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 6921.1 cm-1
Scaled (by 0.9918) Zero Point Vibrational Energy (zpe) 6864.3 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/6-311+G(3df,2p)
ABC
1.69989 0.01987 0.01964

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.381 0.545 0.000
C2 0.381 -0.545 0.000
Br3 0.381 2.279 0.000
Br4 -0.381 -2.279 0.000
H5 -1.468 0.541 0.000
H6 1.468 -0.541 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32971.89412.82411.08722.1443
C21.32972.82411.89412.14431.0872
Br31.89412.82414.62142.53753.0226
Br42.82411.89414.62143.02262.5375
H51.08722.14432.53753.02263.1292
H62.14431.08723.02262.53753.1292

picture of Ethene, 1,2-dibromo-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 121.337 C1 C2 H6 124.752
C2 C1 Br3 121.337 C2 C1 H5 124.752
Br3 C1 H5 113.911 Br4 C2 H6 113.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 C -0.084      
3 Br -0.055      
4 Br -0.055      
5 H 0.139      
6 H 0.139      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.254 -0.291 0.000
y -0.291 -49.729 0.000
z 0.000 0.000 -50.577
Traceless
 xyz
x 3.899 -0.291 0.000
y -0.291 -1.314 0.000
z 0.000 0.000 -2.585
Polar
3z2-r2-5.171
x2-y23.475
xy-0.291
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.639 1.081 0.000
y 1.081 16.947 0.000
z 0.000 0.000 7.438


<r2> (average value of r2) Å2
<r2> 414.475
(<r2>)1/2 20.359