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

using model chemistry: CISD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-5222.114824
Energy at 298.15K-5222.122545
HF Energy-5221.640734
Nuclear repulsion energy426.773283
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/cc-pVDZ
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 3334 3074 0.73      
2 A1 1730 1595 28.06      
3 A1 1224 1128 2.41      
4 A1 614 566 8.23      
5 A1 113 104 0.05      
6 A2 961 886 0.00      
7 A2 396 365 0.00      
8 B1 730 673 59.83      
9 B2 3310 3051 15.66      
10 B2 1334 1229 48.72      
11 B2 796 734 56.09      
12 B2 493 454 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 7517.6 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 6929.7 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/cc-pVDZ
ABC
0.28971 0.03321 0.02980

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.243
C2 0.000 -0.665 1.243
Br3 0.000 1.769 -0.275
Br4 0.000 -1.769 -0.275
H5 0.000 1.208 2.185
H6 0.000 -1.208 2.185

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33091.87682.86901.08742.0973
C21.33092.86901.87682.09731.0874
Br31.87682.86903.53822.52343.8623
Br42.86901.87683.53823.86232.5234
H51.08742.09732.52343.86232.4165
H62.09731.08743.86232.52342.4165

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 126.018 C1 C2 H6 119.946
C2 C1 Br3 126.018 C2 C1 H5 119.946
Br3 C1 H5 114.036 Br4 C2 H6 114.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability