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

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-5222.634465
Energy at 298.15K-5222.642141
HF Energy-5221.818785
Nuclear repulsion energy430.384728
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 CCD/aug-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 3256 3116 0.15      
2 A1 1669 1597 25.05      
3 A1 1200 1149 2.27      
4 A1 609 582 6.32      
5 A1 111 106 0.05      
6 A2 930 890 0.00      
7 A2 386 369 0.00      
8 B1 705 675 53.09      
9 B2 3232 3093 15.50      
10 B2 1317 1261 43.48      
11 B2 785 751 44.65      
12 B2 483 463 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 7341.2 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 7025.5 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 CCD/aug-cc-pVTZ
ABC
0.28900 0.03404 0.03045

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.246
C2 0.000 -0.663 1.246
Br3 0.000 1.747 -0.276
Br4 0.000 -1.747 -0.276
H5 0.000 1.207 2.177
H6 0.000 -1.207 2.177

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32571.86822.85001.07882.0889
C21.32572.85001.86822.08891.0788
Br31.86822.85003.49422.51173.8396
Br42.85001.86823.49423.83962.5117
H51.07882.08892.51173.83962.4137
H62.08891.07883.83962.51172.4137

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 125.475 C1 C2 H6 120.284
C2 C1 Br3 125.475 C2 C1 H5 120.284
Br3 C1 H5 114.240 Br4 C2 H6 114.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability