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

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-5222.323258
Energy at 298.15K-5222.330923
HF Energy-5221.640731
Nuclear repulsion energy428.677945
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 MP3/6-311+G(3df,2p)
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 3273 3273 0.01      
2 A1 1665 1665 25.71      
3 A1 1203 1203 2.24      
4 A1 606 606 6.35      
5 A1 111 111 0.05      
6 A2 924 924 0.00      
7 A2 383 383 0.00      
8 B1 699 699 54.42      
9 B2 3249 3249 16.62      
10 B2 1314 1314 44.59      
11 B2 783 783 48.70      
12 B2 483 483 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 7346.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7346.9 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 MP3/6-311+G(3df,2p)
ABC
0.28922 0.03365 0.03014

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.245
C2 0.000 -0.663 1.245
Br3 0.000 1.757 -0.276
Br4 0.000 -1.757 -0.276
H5 0.000 1.205 2.177
H6 0.000 -1.205 2.177

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32591.87362.85851.07832.0879
C21.32592.85851.87362.08791.0783
Br31.87362.85853.51502.51413.8463
Br42.85851.87363.51503.84632.5141
H51.07832.08792.51413.84632.4107
H62.08791.07833.84632.51412.4107

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 125.744 C1 C2 H6 120.198
C2 C1 Br3 125.744 C2 C1 H5 120.198
Br3 C1 H5 114.058 Br4 C2 H6 114.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability