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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-5217.175654
Energy at 298.15K-5217.183280
HF Energy-5216.679247
Nuclear repulsion energy428.335540
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 MP2/6-31+G**
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 3306 3110 0.27      
2 A1 1638 1541 28.47      
3 A1 1216 1143 1.40      
4 A1 594 559 7.51      
5 A1 107 101 0.04      
6 A2 884 832 0.00      
7 A2 388 365 0.00      
8 B1 701 659 69.98      
9 B2 3285 3090 18.18      
10 B2 1322 1243 44.56      
11 B2 763 718 60.78      
12 B2 481 452 1.85      

Unscaled Zero Point Vibrational Energy (zpe) 7342.1 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 6906.0 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 MP2/6-31+G**
ABC
0.28673 0.03369 0.03015

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 1.251
C2 0.000 -0.669 1.251
Br3 0.000 1.756 -0.277
Br4 0.000 -1.756 -0.277
H5 0.000 1.213 2.184
H6 0.000 -1.213 2.184

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33731.87512.86571.08062.1005
C21.33732.86571.87512.10051.0806
Br31.87512.86573.51192.52013.8564
Br42.86571.87513.51193.85642.5201
H51.08062.10052.52013.85642.4263
H62.10051.08063.85642.52012.4263

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 125.442 C1 C2 H6 120.259
C2 C1 Br3 125.442 C2 C1 H5 120.259
Br3 C1 H5 114.299 Br4 C2 H6 114.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability