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

using model chemistry: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-5222.198017
Energy at 298.15K-5222.205646
HF Energy-5221.639813
Nuclear repulsion energy424.861467
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 CCSD/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 3253 3082 1.54      
2 A1 1661 1573 25.56      
3 A1 1187 1125 2.46      
4 A1 596 565 7.35      
5 A1 110 104 0.04      
6 A2 902 855 0.00      
7 A2 376 356 0.00      
8 B1 696 660 55.82      
9 B2 3230 3060 11.83      
10 B2 1298 1229 45.21      
11 B2 773 732 49.69      
12 B2 476 451 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 7279.1 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 6895.5 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 CCSD/cc-pVDZ
ABC
0.28532 0.03300 0.02958

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.672 1.252
C2 0.000 -0.672 1.252
Br3 0.000 1.774 -0.278
Br4 0.000 -1.774 -0.278
H5 0.000 1.219 2.200
H6 0.000 -1.219 2.200

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34321.88602.88511.09452.1151
C21.34322.88511.88602.11511.0945
Br31.88602.88513.54902.53893.8860
Br42.88511.88603.54903.88602.5389
H51.09452.11512.53893.88602.4388
H62.11511.09453.88602.53892.4388

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 125.787 C1 C2 H6 120.035
C2 C1 Br3 125.787 C2 C1 H5 120.035
Br3 C1 H5 114.178 Br4 C2 H6 114.178
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability