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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-102.678635
Energy at 298.15K-102.686358
HF Energy-102.678635
Nuclear repulsion energy73.824853
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 HF/LANL2DZ
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 3447 3102 6.55      
2 A1 1782 1603 33.32      
3 A1 1312 1180 3.78      
4 A1 561 505 10.29      
5 A1 115 103 0.09      
6 A2 1065 958 0.00      
7 A2 413 372 0.00      
8 B1 788 709 120.24      
9 B2 3422 3080 19.95      
10 B2 1411 1270 77.53      
11 B2 779 701 71.82      
12 B2 481 433 5.73      

Unscaled Zero Point Vibrational Energy (zpe) 7786.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 7007.5 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 HF/LANL2DZ
ABC
0.28004 0.03165 0.02843

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 1.269
C2 0.000 -0.661 1.269
Br3 0.000 1.814 -0.280
Br4 0.000 -1.814 -0.280
H5 0.000 1.210 2.188
H6 0.000 -1.210 2.188

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32131.93112.91931.07032.0839
C21.32132.91931.93112.08391.0703
Br31.93112.91933.62752.54043.9028
Br42.91931.93113.62753.90282.5404
H51.07032.08392.54043.90282.4197
H62.08391.07033.90282.54042.4197

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 126.665 C1 C2 H6 120.876
C2 C1 Br3 126.665 C2 C1 H5 120.876
Br3 C1 H5 112.460 Br4 C2 H6 112.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 C -0.300      
3 Br 0.035      
4 Br 0.035      
5 H 0.265      
6 H 0.265      


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 2.499 2.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.190 0.000 0.000
y 0.000 -44.320 0.000
z 0.000 0.000 -36.607
Traceless
 xyz
x -4.727 0.000 0.000
y 0.000 -3.422 0.000
z 0.000 0.000 8.149
Polar
3z2-r216.297
x2-y2-0.870
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.797 0.000 0.000
y 0.000 9.827 0.000
z 0.000 0.000 6.965


<r2> (average value of r2) Å2
<r2> 110.471
(<r2>)1/2 10.511