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

using model chemistry: QCISD/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 QCISD/6-311G*
 hartrees
Energy at 0K-5222.169188
Energy at 298.15K-5222.176799
HF Energy-5221.616814
Nuclear repulsion energy425.339581
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 QCISD/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 3229 3092 2.90      
2 A1 1648 1578 24.57      
3 A1 1215 1163 1.78      
4 A1 592 567 7.13      
5 A1 111 107 0.03      
6 A2 885 847 0.00      
7 A2 370 354 0.00      
8 B1 691 661 71.94      
9 B2 3207 3070 11.66      
10 B2 1320 1264 40.58      
11 B2 778 745 56.92      
12 B2 476 456 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 7260.8 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 6951.5 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 QCISD/6-311G*
ABC
0.28732 0.03301 0.02961

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 1.249
C2 0.000 -0.668 1.249
Br3 0.000 1.775 -0.277
Br4 0.000 -1.775 -0.277
H5 0.000 1.214 2.187
H6 0.000 -1.214 2.187

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33551.88462.87951.08572.1029
C21.33552.87951.88462.10291.0857
Br31.88462.87953.54922.52643.8732
Br42.87951.88463.54923.87322.5264
H51.08572.10292.52643.87322.4284
H62.10291.08573.87322.52642.4284

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 125.965 C1 C2 H6 120.219
C2 C1 Br3 125.965 C2 C1 H5 120.219
Br3 C1 H5 113.816 Br4 C2 H6 113.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability