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

using model chemistry: CCD/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 CCD/Def2TZVPP
 hartrees
Energy at 0K-5222.612458
Energy at 298.15K-5222.620141
HF Energy-5221.726728
Nuclear repulsion energy429.696000
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/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 3264 3264 0.38      
2 A1 1672 1672 24.63      
3 A1 1204 1204 2.46      
4 A1 611 611 6.60      
5 A1 111 111 0.05      
6 A2 941 941 0.00      
7 A2 389 389 0.00      
8 B1 714 714 56.20      
9 B2 3240 3240 14.49      
10 B2 1318 1318 42.50      
11 B2 791 791 45.84      
12 B2 487 487 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 7370.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7370.3 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/Def2TZVPP
ABC
0.28974 0.03385 0.03031

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.244
C2 0.000 -0.663 1.244
Br3 0.000 1.752 -0.275
Br4 0.000 -1.752 -0.275
H5 0.000 1.205 2.176
H6 0.000 -1.205 2.176

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32561.86942.85301.07812.0875
C21.32562.85301.86942.08751.0781
Br31.86942.85303.50422.51133.8410
Br42.85301.86943.50423.84102.5113
H51.07812.08752.51133.84102.4105
H62.08751.07813.84102.51132.4105

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 125.640 C1 C2 H6 120.208
C2 C1 Br3 125.640 C2 C1 H5 120.208
Br3 C1 H5 114.152 Br4 C2 H6 114.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability