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

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-5217.204642
Energy at 298.15K-5217.212290
HF Energy-5216.646313
Nuclear repulsion energy431.643836
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3320 3102 0.50      
2 A1 1648 1540 25.33      
3 A1 1208 1128 2.13      
4 A1 601 562 9.00      
5 A1 119 111 0.04      
6 A2 901 842 0.00      
7 A2 378 353 0.00      
8 B1 713 666 57.06      
9 B2 3299 3082 15.26      
10 B2 1319 1233 37.56      
11 B2 778 727 48.85      
12 B2 478 447 2.60      

Unscaled Zero Point Vibrational Energy (zpe) 7380.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 6896.4 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
0.27997 0.03477 0.03093

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 1.268
C2 0.000 -0.667 1.268
Br3 0.000 1.728 -0.280
Br4 0.000 -1.728 -0.280
H5 0.000 1.221 2.194
H6 0.000 -1.221 2.194

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33441.87682.85191.07872.1031
C21.33442.85191.87682.10311.0787
Br31.87682.85193.45552.52523.8493
Br42.85191.87683.45553.84932.5252
H51.07872.10312.52523.84932.4426
H62.10311.07873.84932.52522.4426

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 124.409 C1 C2 H6 120.907
C2 C1 Br3 124.409 C2 C1 H5 120.907
Br3 C1 H5 114.684 Br4 C2 H6 114.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability