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

using model chemistry: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-5222.446291
Energy at 298.15K-5222.453905
HF Energy-5221.712281
Nuclear repulsion energy426.765155
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 MP3/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3300 3086 0.76      
2 A1 1679 1570 28.27      
3 A1 1218 1139 2.64      
4 A1 590 552 8.22      
5 A1 111 104 0.05      
6 A2 854 799 0.00      
7 A2 367 343 0.00      
8 B1 695 650 66.41      
9 B2 3277 3065 14.11      
10 B2 1324 1238 48.65      
11 B2 779 728 53.45      
12 B2 476 446 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 7334.8 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 6859.5 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 MP3/TZVP
ABC
0.28676 0.03334 0.02987

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 1.251
C2 0.000 -0.662 1.251
Br3 0.000 1.766 -0.277
Br4 0.000 -1.766 -0.277
H5 0.000 1.209 2.180
H6 0.000 -1.209 2.180

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32371.88522.86861.07772.0884
C21.32372.86861.88522.08841.0777
Br31.88522.86863.53182.51923.8580
Br42.86861.88523.53183.85802.5192
H51.07772.08842.51923.85802.4174
H62.08841.07773.85802.51922.4174

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 125.847 C1 C2 H6 120.490
C2 C1 Br3 125.847 C2 C1 H5 120.490
Br3 C1 H5 113.663 Br4 C2 H6 113.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability