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

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-5222.714486
Energy at 298.15K-5222.722189
HF Energy-5221.817186
Nuclear repulsion energy433.700642
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/cc-pVTZ
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 3277 3111 0.08      
2 A1 1630 1548 26.97      
3 A1 1198 1137 1.69      
4 A1 622 590 6.49      
5 A1 110 105 0.03      
6 A2 933 886 0.00      
7 A2 397 377 0.00      
8 B1 717 681 59.97      
9 B2 3247 3083 18.43      
10 B2 1310 1244 36.93      
11 B2 791 751 51.73      
12 B2 487 463 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 7359.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 6987.4 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/cc-pVTZ
ABC
0.29085 0.03469 0.03100

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 1.242
C2 0.000 -0.664 1.242
Br3 0.000 1.730 -0.275
Br4 0.000 -1.730 -0.275
H5 0.000 1.202 2.171
H6 0.000 -1.202 2.171

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32831.85362.83401.07382.0850
C21.32832.83401.85362.08501.0738
Br31.85362.83403.46012.50193.8184
Br42.83401.85363.46013.81842.5019
H51.07382.08502.50193.81842.4047
H62.08501.07383.81842.50192.4047

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 125.104 C1 C2 H6 120.082
C2 C1 Br3 125.104 C2 C1 H5 120.082
Br3 C1 H5 114.814 Br4 C2 H6 114.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability