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

using model chemistry: B1B95/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at B1B95/aug-cc-pVTZ
 hartrees
Energy at 0K-5226.482357
Energy at 298.15K-5226.490018
HF Energy-5226.482357
Nuclear repulsion energy431.798016
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 B1B95/aug-cc-pVTZ
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 3246 3111 0.01      
2 A1 1657 1588 33.32      
3 A1 1173 1124 1.45      
4 A1 607 582 7.66      
5 A1 112 107 0.04      
6 A2 915 877 0.00      
7 A2 388 372 0.00      
8 B1 692 664 56.45      
9 B2 3223 3090 17.04      
10 B2 1284 1230 44.06      
11 B2 775 743 60.08      
12 B2 483 463 2.17      

Unscaled Zero Point Vibrational Energy (zpe) 7277.0 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 6975.0 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 B1B95/aug-cc-pVTZ
ABC
0.28954 0.03433 0.03069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.660 1.245
C2 0.000 -0.660 1.245
Br3 0.000 1.740 -0.275
Br4 0.000 -1.740 -0.275
H5 0.000 1.210 2.172
H6 0.000 -1.210 2.172

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31931.86492.84041.07782.0865
C21.31932.84041.86492.08651.0778
Br31.86492.84043.47912.50413.8325
Br42.84041.86493.47913.83252.5041
H51.07782.08652.50413.83252.4194
H62.08651.07783.83252.50412.4194

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 125.384 C1 C2 H6 120.685
C2 C1 Br3 125.384 C2 C1 H5 120.685
Br3 C1 H5 113.930 Br4 C2 H6 113.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 C -0.469      
3 Br 0.091      
4 Br 0.091      
5 H 0.379      
6 H 0.379      


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 1.641 1.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.129 0.000 0.000
y 0.000 -48.549 0.000
z 0.000 0.000 -42.542
Traceless
 xyz
x -4.583 0.000 0.000
y 0.000 -2.214 0.000
z 0.000 0.000 6.797
Polar
3z2-r213.594
x2-y2-1.579
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.260 0.000 0.000
y 0.000 13.354 0.000
z 0.000 0.000 9.766


<r2> (average value of r2) Å2
<r2> 282.720
(<r2>)1/2 16.814