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

using model chemistry: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-5225.695475
Energy at 298.15K-5225.703063
HF Energy-5225.695475
Nuclear repulsion energy424.020071
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/6-311G*
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 3217 3109 2.12      
2 A1 1634 1579 36.92      
3 A1 1196 1156 1.98      
4 A1 574 555 8.92      
5 A1 107 104 0.02      
6 A2 892 862 0.00      
7 A2 381 368 0.00      
8 B1 683 660 76.09      
9 B2 3195 3088 12.36      
10 B2 1296 1253 47.53      
11 B2 756 731 75.77      
12 B2 472 456 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 7201.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6959.1 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 B3LYP/6-311G*
ABC
0.28810 0.03268 0.02935

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.248
C2 0.000 -0.663 1.248
Br3 0.000 1.784 -0.276
Br4 0.000 -1.784 -0.276
H5 0.000 1.213 2.180
H6 0.000 -1.213 2.180

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32541.89192.88241.08252.0944
C21.32542.88241.89192.09441.0825
Br31.89192.88243.56782.52183.8746
Br42.88241.89193.56783.87462.5218
H51.08252.09442.52183.87462.4255
H62.09441.08253.87462.52182.4255

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 126.344 C1 C2 H6 120.537
C2 C1 Br3 126.344 C2 C1 H5 120.537
Br3 C1 H5 113.120 Br4 C2 H6 113.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.297      
2 C -0.297      
3 Br 0.035      
4 Br 0.035      
5 H 0.262      
6 H 0.262      


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 1.710 1.710
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.678 0.000 0.000
y 0.000 -48.478 0.000
z 0.000 0.000 -42.535
Traceless
 xyz
x -5.172 0.000 0.000
y 0.000 -1.871 0.000
z 0.000 0.000 7.043
Polar
3z2-r214.086
x2-y2-2.200
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.927 0.000 0.000
y 0.000 11.309 0.000
z 0.000 0.000 7.952


<r2> (average value of r2) Å2
<r2> 293.993
(<r2>)1/2 17.146