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

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-5222.961737
Energy at 298.15K-5222.969366
HF Energy-5221.616770
Nuclear repulsion energy428.232416
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/6-311G*
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 3258 3086 0.94      
2 A1 1623 1537 26.56      
3 A1 1215 1150 1.03      
4 A1 607 575 7.50      
5 A1 112 106 0.02      
6 A2 872 826 0.00      
7 A2 373 353 0.00      
8 B1 689 652 77.47      
9 B2 3237 3065 16.12      
10 B2 1317 1248 35.32      
11 B2 787 746 61.09      
12 B2 483 458 1.49      

Unscaled Zero Point Vibrational Energy (zpe) 7285.7 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 6900.3 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/6-311G*
ABC
0.28930 0.03355 0.03006

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.669 1.244
C2 0.000 -0.669 1.244
Br3 0.000 1.760 -0.276
Br4 0.000 -1.760 -0.276
H5 0.000 1.211 2.182
H6 0.000 -1.211 2.182

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33711.87092.86461.08382.1010
C21.33712.86461.87092.10101.0838
Br31.87092.86463.51952.51823.8560
Br42.86461.87093.51953.85602.5182
H51.08382.10102.51823.85602.4229
H62.10101.08383.85602.51822.4229

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 125.679 C1 C2 H6 120.061
C2 C1 Br3 125.679 C2 C1 H5 120.061
Br3 C1 H5 114.260 Br4 C2 H6 114.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability