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

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-5224.783332
Energy at 298.15K-5224.790858
HF Energy-5224.783332
Nuclear repulsion energy424.957009
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/aug-cc-pVDZ
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 3158 3138 0.00      
2 A1 1583 1574 38.50      
3 A1 1120 1113 1.37      
4 A1 576 573 7.67      
5 A1 103 102 0.03      
6 A2 835 830 0.00      
7 A2 368 365 0.00      
8 B1 656 652 58.77      
9 B2 3137 3118 17.22      
10 B2 1217 1210 42.58      
11 B2 739 735 68.61      
12 B2 464 461 3.18      

Unscaled Zero Point Vibrational Energy (zpe) 6977.4 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 6934.8 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
0.28432 0.03307 0.02963

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 1.255
C2 0.000 -0.671 1.255
Br3 0.000 1.772 -0.278
Br4 0.000 -1.772 -0.278
H5 0.000 1.232 2.198
H6 0.000 -1.232 2.198

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34241.88782.88491.09722.1243
C21.34242.88491.88782.12431.0972
Br31.88782.88493.54482.53443.8936
Br42.88491.88783.54483.89362.5344
H51.09722.12432.53443.89362.4649
H62.12431.09723.89362.53442.4649

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 125.683 C1 C2 H6 120.765
C2 C1 Br3 125.683 C2 C1 H5 120.765
Br3 C1 H5 113.553 Br4 C2 H6 113.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.316      
2 C 0.316      
3 Br 0.238      
4 Br 0.238      
5 H -0.554      
6 H -0.554      


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 1.581 1.581
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.780 0.000 0.000
y 0.000 -48.815 0.000
z 0.000 0.000 -42.924
Traceless
 xyz
x -4.910 0.000 0.000
y 0.000 -1.963 0.000
z 0.000 0.000 6.873
Polar
3z2-r213.746
x2-y2-1.965
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.240 0.000 0.000
y 0.000 13.895 0.000
z 0.000 0.000 10.069


<r2> (average value of r2) Å2
<r2> 291.995
(<r2>)1/2 17.088