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

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-5224.773948
Energy at 298.15K-5224.781482
HF Energy-5224.773948
Nuclear repulsion energy424.690139
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 PBEPBE/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 3151 3123 0.36      
2 A1 1584 1569 40.07      
3 A1 1140 1129 1.41      
4 A1 575 570 8.37      
5 A1 104 103 0.01      
6 A2 840 833 0.00      
7 A2 371 367 0.00      
8 B1 655 649 74.60      
9 B2 3130 3102 15.76      
10 B2 1236 1224 40.08      
11 B2 743 736 77.93      
12 B2 466 462 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 6997.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 6933.5 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 PBEPBE/6-311G**
ABC
0.28666 0.03290 0.02951

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 1.250
C2 0.000 -0.668 1.250
Br3 0.000 1.777 -0.277
Br4 0.000 -1.777 -0.277
H5 0.000 1.224 2.188
H6 0.000 -1.224 2.188

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33581.88772.88311.09032.1114
C21.33582.88311.88772.11141.0903
Br31.88772.88313.55482.52663.8838
Br42.88311.88773.55483.88382.5266
H51.09032.11142.52663.88382.4474
H62.11141.09033.88382.52662.4474

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 125.997 C1 C2 H6 120.648
C2 C1 Br3 125.997 C2 C1 H5 120.648
Br3 C1 H5 113.354 Br4 C2 H6 113.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.215      
2 C -0.215      
3 Br 0.038      
4 Br 0.038      
5 H 0.177      
6 H 0.177      


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 -50.494 0.000 0.000
y 0.000 -48.109 0.000
z 0.000 0.000 -42.557
Traceless
 xyz
x -5.161 0.000 0.000
y 0.000 -1.583 0.000
z 0.000 0.000 6.744
Polar
3z2-r213.488
x2-y2-2.385
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.023 0.000 0.000
y 0.000 11.617 0.000
z 0.000 0.000 8.198


<r2> (average value of r2) Å2
<r2> 292.585
(<r2>)1/2 17.105