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

using model chemistry: QCISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at QCISD/Def2TZVPP
 hartrees
Energy at 0K-5222.620405
Energy at 298.15K-5222.628072
HF Energy-5221.726630
Nuclear repulsion energy429.337794
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 QCISD/Def2TZVPP
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 3257 3257 0.47      
2 A1 1658 1658 25.47      
3 A1 1198 1198 2.37      
4 A1 607 607 6.69      
5 A1 111 111 0.05      
6 A2 930 930 0.00      
7 A2 386 386 0.00      
8 B1 709 709 56.30      
9 B2 3233 3233 14.50      
10 B2 1311 1311 43.64      
11 B2 785 785 48.54      
12 B2 484 484 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 7334.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7334.9 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 QCISD/Def2TZVPP
ABC
0.28886 0.03381 0.03027

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 1.246
C2 0.000 -0.664 1.246
Br3 0.000 1.753 -0.276
Br4 0.000 -1.753 -0.276
H5 0.000 1.208 2.177
H6 0.000 -1.208 2.177

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32771.87142.85611.07842.0905
C21.32772.85611.87142.09051.0784
Br31.87142.85613.50612.51293.8450
Br42.85611.87143.50613.84502.5129
H51.07842.09052.51293.84502.4156
H62.09051.07843.84502.51292.4156

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 125.592 C1 C2 H6 120.292
C2 C1 Br3 125.592 C2 C1 H5 120.292
Br3 C1 H5 114.116 Br4 C2 H6 114.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability