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

using model chemistry: CCSD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-5222.640255
Energy at 298.15K-5222.647921
HF Energy-5221.818731
Nuclear repulsion energy430.143395
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/aug-cc-pVTZ
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 3252 3108 0.19      
2 A1 1659 1586 25.52      
3 A1 1196 1144 2.25      
4 A1 606 579 6.32      
5 A1 110 106 0.05      
6 A2 923 882 0.00      
7 A2 384 367 0.00      
8 B1 702 671 53.04      
9 B2 3228 3086 15.18      
10 B2 1313 1255 44.76      
11 B2 781 746 46.63      
12 B2 482 460 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 7317.6 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 6994.1 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/aug-cc-pVTZ
ABC
0.28844 0.03401 0.03042

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 1.247
C2 0.000 -0.664 1.247
Br3 0.000 1.748 -0.276
Br4 0.000 -1.748 -0.276
H5 0.000 1.208 2.178
H6 0.000 -1.208 2.178

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32711.86952.85201.07892.0908
C21.32712.85201.86952.09081.0789
Br31.86952.85203.49552.51283.8421
Br42.85201.86953.49553.84212.5128
H51.07892.09082.51283.84212.4167
H62.09081.07893.84212.51282.4167

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 125.446 C1 C2 H6 120.329
C2 C1 Br3 125.446 C2 C1 H5 120.329
Br3 C1 H5 114.225 Br4 C2 H6 114.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability