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

using model chemistry: MP3=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-5217.210942
Energy at 298.15K-5217.218588
HF Energy-5216.642513
Nuclear repulsion energy430.059800
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=FULL/6-31G*
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 3302 3098 0.48      
2 A1 1697 1593 22.47      
3 A1 1219 1144 2.20      
4 A1 594 557 9.15      
5 A1 120 112 0.05      
6 A2 920 863 0.00      
7 A2 380 357 0.00      
8 B1 720 676 61.60      
9 B2 3280 3078 13.41      
10 B2 1330 1248 36.68      
11 B2 778 730 46.80      
12 B2 477 447 3.01      

Unscaled Zero Point Vibrational Energy (zpe) 7408.1 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 6951.0 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=FULL/6-31G*
ABC
0.27857 0.03448 0.03068

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 1.272
C2 0.000 -0.664 1.272
Br3 0.000 1.735 -0.281
Br4 0.000 -1.735 -0.281
H5 0.000 1.225 2.197
H6 0.000 -1.225 2.197

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32821.88622.85791.08252.1039
C21.32822.85791.88622.10391.0825
Br31.88622.85793.47062.53023.8608
Br42.85791.88623.47063.86082.5302
H51.08252.10392.53023.86082.4503
H62.10391.08253.86082.53022.4503

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 124.605 C1 C2 H6 121.220
C2 C1 Br3 124.605 C2 C1 H5 121.220
Br3 C1 H5 114.175 Br4 C2 H6 114.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability