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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-5224.944286
Energy at 298.15K-5224.951824
HF Energy-5224.944286
Nuclear repulsion energy426.332646
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 PBEPBEultrafine/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 3145 3123 0.17      
2 A1 1580 1569 36.36      
3 A1 1133 1125 1.26      
4 A1 575 571 7.71      
5 A1 102 101 0.02      
6 A2 849 844 0.00      
7 A2 374 372 0.00      
8 B1 656 652 60.58      
9 B2 3123 3102 15.90      
10 B2 1234 1225 41.32      
11 B2 739 734 67.47      
12 B2 465 461 2.78      

Unscaled Zero Point Vibrational Energy (zpe) 6987.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 6939.1 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 PBEPBEultrafine/cc-pVTZ
ABC
0.28695 0.03325 0.02980

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 1.250
C2 0.000 -0.666 1.250
Br3 0.000 1.768 -0.277
Br4 0.000 -1.768 -0.277
H5 0.000 1.222 2.186
H6 0.000 -1.222 2.186

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33271.88262.87341.08872.1077
C21.33272.87341.88262.10771.0887
Br31.88262.87343.53602.52273.8737
Br42.87341.88263.53603.87372.5227
H51.08872.10772.52273.87372.4439
H62.10771.08873.87372.52272.4439

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 125.815 C1 C2 H6 120.686
C2 C1 Br3 125.815 C2 C1 H5 120.686
Br3 C1 H5 113.499 Br4 C2 H6 113.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.138      
2 C -0.138      
3 Br 0.000      
4 Br 0.000      
5 H 0.138      
6 H 0.138      


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 1.565 1.565
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.325 0.000 0.000
y 0.000 -48.424 0.000
z 0.000 0.000 -42.785
Traceless
 xyz
x -4.721 0.000 0.000
y 0.000 -1.869 0.000
z 0.000 0.000 6.590
Polar
3z2-r213.180
x2-y2-1.901
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.363 0.000 0.000
y 0.000 12.617 0.000
z 0.000 0.000 9.050


<r2> (average value of r2) Å2
<r2> 290.256
(<r2>)1/2 17.037