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

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-5225.874793
Energy at 298.15K-5225.882408
HF Energy-5225.874793
Nuclear repulsion energy425.504423
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/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 3216 3109 0.23      
2 A1 1631 1577 34.37      
3 A1 1183 1143 1.93      
4 A1 579 559 8.19      
5 A1 106 103 0.04      
6 A2 907 877 0.00      
7 A2 386 373 0.00      
8 B1 687 664 60.26      
9 B2 3194 3088 16.31      
10 B2 1287 1244 49.48      
11 B2 757 731 66.24      
12 B2 474 458 3.26      

Unscaled Zero Point Vibrational Energy (zpe) 7203.2 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 6962.6 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/cc-pVTZ
ABC
0.28897 0.03296 0.02959

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 1.246
C2 0.000 -0.661 1.246
Br3 0.000 1.776 -0.276
Br4 0.000 -1.776 -0.276
H5 0.000 1.210 2.175
H6 0.000 -1.210 2.175

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32191.88662.87321.07952.0892
C21.32192.87321.88662.08921.0795
Br31.88662.87323.55242.51563.8635
Br42.87321.88663.55243.86352.5156
H51.07952.08922.51563.86352.4203
H62.08921.07953.86352.51562.4203

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 126.236 C1 C2 H6 120.580
C2 C1 Br3 126.236 C2 C1 H5 120.580
Br3 C1 H5 113.184 Br4 C2 H6 113.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 C -0.144      
3 Br -0.010      
4 Br -0.010      
5 H 0.154      
6 H 0.154      


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 1.683 1.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.428 0.000 0.000
y 0.000 -48.793 0.000
z 0.000 0.000 -42.876
Traceless
 xyz
x -4.593 0.000 0.000
y 0.000 -2.141 0.000
z 0.000 0.000 6.735
Polar
3z2-r213.469
x2-y2-1.635
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.270 0.000 0.000
y 0.000 12.307 0.000
z 0.000 0.000 8.801


<r2> (average value of r2) Å2
<r2> 292.010
(<r2>)1/2 17.088