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

using model chemistry: MP2=FULL/cc-pVQZ

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-pVQZ
 hartrees
Energy at 0K-5222.991197
Energy at 298.15K-5222.998897
HF Energy-5221.827983
Nuclear repulsion energy435.009793
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-pVQZ
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 3271 3131 0.01      
2 A1 1626 1556 26.25      
3 A1 1182 1131 1.53      
4 A1 629 602 6.38      
5 A1 112 107 0.03      
6 A2 925 885 0.00      
7 A2 395 378 0.00      
8 B1 704 674 57.03      
9 B2 3251 3111 18.97      
10 B2 1295 1240 37.30      
11 B2 796 762 49.58      
12 B2 491 470 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 7339.0 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 7024.1 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-pVQZ
ABC
0.29038 0.03502 0.03125

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.243
C2 0.000 -0.663 1.243
Br3 0.000 1.722 -0.275
Br4 0.000 -1.722 -0.275
H5 0.000 1.205 2.172
H6 0.000 -1.205 2.172

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32681.85042.82721.07572.0870
C21.32682.82721.85042.08701.0757
Br31.85042.82723.44372.50103.8152
Br42.82721.85043.44373.81522.5010
H51.07572.08702.50103.81522.4105
H62.08701.07573.81522.50102.4105

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 124.891 C1 C2 H6 120.245
C2 C1 Br3 124.891 C2 C1 H5 120.245
Br3 C1 H5 114.864 Br4 C2 H6 114.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability