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

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-5222.610763
Energy at 298.15K-5222.618447
HF Energy-5221.817724
Nuclear repulsion energy429.345677
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 CCD/cc-pVTZ
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 3260 3044 0.58      
2 A1 1672 1561 24.29      
3 A1 1204 1124 2.54      
4 A1 607 567 6.63      
5 A1 110 103 0.05      
6 A2 942 880 0.00      
7 A2 388 362 0.00      
8 B1 712 665 56.88      
9 B2 3236 3022 15.02      
10 B2 1321 1233 43.32      
11 B2 787 735 46.47      
12 B2 484 452 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 7361.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 6873.8 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 CCD/cc-pVTZ
ABC
0.29022 0.03375 0.03023

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.243
C2 0.000 -0.663 1.243
Br3 0.000 1.755 -0.275
Br4 0.000 -1.755 -0.275
H5 0.000 1.203 2.176
H6 0.000 -1.203 2.176

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32601.86962.85471.07832.0865
C21.32602.85471.86962.08651.0783
Br31.86962.85473.50962.51233.8415
Br42.85471.86963.50963.84152.5123
H51.07832.08652.51233.84152.4063
H62.08651.07833.84152.51232.4063

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 125.730 C1 C2 H6 120.060
C2 C1 Br3 125.730 C2 C1 H5 120.060
Br3 C1 H5 114.211 Br4 C2 H6 114.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability