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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-5222.193990
Energy at 298.15K-5222.201632
HF Energy-5221.639942
Nuclear repulsion energy425.144352
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/cc-pVDZ
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 3117 1.54      
2 A1 1671 1599 24.84      
3 A1 1192 1140 2.45      
4 A1 599 573 7.20      
5 A1 110 106 0.05      
6 A2 911 871 0.00      
7 A2 378 362 0.00      
8 B1 700 669 55.90      
9 B2 3235 3095 11.63      
10 B2 1303 1247 42.76      
11 B2 778 744 46.16      
12 B2 479 458 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 7306.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6990.3 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 CCD/cc-pVDZ
ABC
0.28595 0.03303 0.02961

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 1.251
C2 0.000 -0.671 1.251
Br3 0.000 1.774 -0.277
Br4 0.000 -1.774 -0.277
H5 0.000 1.218 2.199
H6 0.000 -1.218 2.199

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34161.88452.88271.09442.1131
C21.34162.88271.88452.11311.0944
Br31.88452.88273.54732.53753.8832
Br42.88271.88453.54733.88322.5375
H51.09442.11312.53753.88322.4358
H62.11311.09443.88322.53752.4358

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 125.819 C1 C2 H6 119.995
C2 C1 Br3 125.819 C2 C1 H5 119.995
Br3 C1 H5 114.186 Br4 C2 H6 114.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability