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

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-5222.469169
Energy at 298.15K-5222.476946
HF Energy-5221.727034
Nuclear repulsion energy431.357746
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 CISD/Def2TZVPP
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 3356 3356 0.13      
2 A1 1744 1744 27.85      
3 A1 1248 1248 2.46      
4 A1 630 630 7.27      
5 A1 115 115 0.06      
6 A2 1004 1004 0.00      
7 A2 410 410 0.00      
8 B1 750 750 59.03      
9 B2 3332 3332 17.88      
10 B2 1362 1362 47.85      
11 B2 816 816 53.50      
12 B2 504 504 1.85      

Unscaled Zero Point Vibrational Energy (zpe) 7635.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7635.5 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 CISD/Def2TZVPP
ABC
0.29511 0.03397 0.03046

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.657 1.232
C2 0.000 -0.657 1.232
Br3 0.000 1.749 -0.273
Br4 0.000 -1.749 -0.273
H5 0.000 1.193 2.159
H6 0.000 -1.193 2.159

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31351.85982.83811.07062.0687
C21.31352.83811.85982.06871.0706
Br31.85982.83813.49902.49473.8171
Br42.83811.85983.49903.81712.4947
H51.07062.06872.49473.81712.3855
H62.06871.07063.81712.49472.3855

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 125.984 C1 C2 H6 120.042
C2 C1 Br3 125.984 C2 C1 H5 120.042
Br3 C1 H5 113.974 Br4 C2 H6 113.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability