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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at G2
 hartrees
Energy at 0K-5222.386909
Energy at 298.15K-5222.381334
HF Energy-5216.643197
Nuclear repulsion energy429.915551
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 HF/6-31G*
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 3436 3238 2.05      
2 A1 1813 1708 29.52      
3 A1 1296 1221 3.55      
4 A1 617 582 11.75      
5 A1 123 116 0.09      
6 A2 1061 999 0.00      
7 A2 418 394 0.00      
8 B1 789 743 63.43      
9 B2 3412 3215 13.58      
10 B2 1413 1331 61.06      
11 B2 816 769 62.19      
12 B2 505 476 5.10      

Unscaled Zero Point Vibrational Energy (zpe) 7849.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 7396.1 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 MP2=FULL/6-31G*
ABC
0.27880 0.03481 0.03095

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 1.271
C2 0.000 -0.667 1.271
Br3 0.000 1.727 -0.281
Br4 0.000 -1.727 -0.281
H5 0.000 1.227 2.199
H6 0.000 -1.227 2.199

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33481.87862.85281.08382.1093
C21.33482.85281.87862.10931.0838
Br31.87862.85283.45322.52983.8563
Br42.85281.87863.45323.85632.5298
H51.08382.10932.52983.85632.4531
H62.10931.08383.85632.52982.4531

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 125.579 C1 C2 H6 120.681
C2 C1 Br3 125.579 C2 C1 H5 120.681
Br3 C1 H5 113.739 Br4 C2 H6 113.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability