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

using model chemistry: B3LYP/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-5225.887248
Energy at 298.15K-5225.894860
HF Energy-5225.887248
Nuclear repulsion energy425.976589
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/aug-cc-pVQZ
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 3214 3114 0.01      
2 A1 1627 1576 34.84      
3 A1 1182 1146 1.72      
4 A1 579 561 7.71      
5 A1 107 103 0.04      
6 A2 909 881 0.00      
7 A2 385 373 0.00      
8 B1 686 665 56.16      
9 B2 3193 3093 16.61      
10 B2 1288 1248 50.07      
11 B2 758 734 64.27      
12 B2 475 460 3.39      

Unscaled Zero Point Vibrational Energy (zpe) 7200.4 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 6976.5 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/aug-cc-pVQZ
ABC
0.28906 0.03306 0.02967

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

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 1.773 -0.276
Br4 0.000 -1.773 -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
C11.32171.88502.87071.07902.0886
C21.32172.87071.88502.08861.0790
Br31.88502.87073.54692.51443.8607
Br42.87071.88503.54693.86072.5144
H51.07902.08862.51443.86072.4198
H62.08861.07903.86072.51442.4198

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 126.176 C1 C2 H6 120.587
C2 C1 Br3 126.176 C2 C1 H5 120.587
Br3 C1 H5 113.237 Br4 C2 H6 113.237
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.532      
2 C -0.532      
3 Br 0.144      
4 Br 0.144      
5 H 0.388      
6 H 0.388      


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 -50.532 0.000 0.000
y 0.000 -49.132 0.000
z 0.000 0.000 -43.110
Traceless
 xyz
x -4.411 0.000 0.000
y 0.000 -2.311 0.000
z 0.000 0.000 6.722
Polar
3z2-r213.444
x2-y2-1.400
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.480 0.000 0.000
y 0.000 13.794 0.000
z 0.000 0.000 9.996


<r2> (average value of r2) Å2
<r2> 291.462
(<r2>)1/2 17.072