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

using model chemistry: BLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-5225.737310
Energy at 298.15K-5225.744801
HF Energy-5225.737310
Nuclear repulsion energy419.748152
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 BLYP/TZVP
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 3142 3134 0.33      
2 A1 1563 1559 42.09      
3 A1 1151 1148 1.58      
4 A1 541 539 9.55      
5 A1 102 102 0.02      
6 A2 850 848 0.00      
7 A2 370 369 0.00      
8 B1 658 656 71.01      
9 B2 3121 3113 14.30      
10 B2 1244 1241 51.39      
11 B2 720 718 76.41      
12 B2 451 450 4.63      

Unscaled Zero Point Vibrational Energy (zpe) 6956.1 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 6938.8 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 BLYP/TZVP
ABC
0.28292 0.03200 0.02875

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 1.260
C2 0.000 -0.667 1.260
Br3 0.000 1.803 -0.279
Br4 0.000 -1.803 -0.279
H5 0.000 1.223 2.194
H6 0.000 -1.223 2.194

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33301.91292.90971.08732.1078
C21.33302.90971.91292.10781.0873
Br31.91292.90973.60632.53983.9079
Br42.90971.91293.60633.90792.5398
H51.08732.10782.53983.90792.4461
H62.10781.08733.90792.53982.4461

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 126.455 C1 C2 H6 120.786
C2 C1 Br3 126.455 C2 C1 H5 120.786
Br3 C1 H5 112.759 Br4 C2 H6 112.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.137      
2 C -0.137      
3 Br -0.036      
4 Br -0.036      
5 H 0.173      
6 H 0.173      


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 1.606 1.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.884 0.000 0.000
y 0.000 -49.001 0.000
z 0.000 0.000 -43.021
Traceless
 xyz
x -4.873 0.000 0.000
y 0.000 -2.048 0.000
z 0.000 0.000 6.921
Polar
3z2-r213.843
x2-y2-1.883
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.976 0.000 0.000
y 0.000 12.304 0.000
z 0.000 0.000 8.858


<r2> (average value of r2) Å2
<r2> 299.780
(<r2>)1/2 17.314