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

using model chemistry: CCSD=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-5222.606043
Energy at 298.15K-5222.613658
HF Energy-5221.712148
Nuclear repulsion energy426.042697
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=FULL/TZVP
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 3269 3098 1.24      
2 A1 1662 1575 27.15      
3 A1 1215 1151 2.68      
4 A1 587 556 7.63      
5 A1 111 105 0.04      
6 A2 869 824 0.00      
7 A2 369 350 0.00      
8 B1 699 662 64.04      
9 B2 3246 3076 12.44      
10 B2 1320 1251 50.03      
11 B2 775 735 52.68      
12 B2 474 449 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 7298.3 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 6915.1 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=FULL/TZVP
ABC
0.28650 0.03319 0.02975

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.252
C2 0.000 -0.663 1.252
Br3 0.000 1.770 -0.277
Br4 0.000 -1.770 -0.277
H5 0.000 1.209 2.182
H6 0.000 -1.209 2.182

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32581.88732.87311.07922.0908
C21.32582.87311.88732.09081.0792
Br31.88732.87313.53962.52233.8631
Br42.87311.88733.53963.86312.5223
H51.07922.09082.52233.86312.4188
H62.09081.07923.86312.52232.4188

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 125.909 C1 C2 H6 120.422
C2 C1 Br3 125.909 C2 C1 H5 120.422
Br3 C1 H5 113.670 Br4 C2 H6 113.670
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability