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

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-5222.087691
Energy at 298.15K-5222.095405
HF Energy-5221.617628
Nuclear repulsion energy427.230709
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 CISD/6-311G*
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 3319 3071 2.06      
2 A1 1720 1592 26.84      
3 A1 1253 1160 1.96      
4 A1 612 566 7.80      
5 A1 115 106 0.04      
6 A2 953 882 0.00      
7 A2 393 363 0.00      
8 B1 727 673 74.78      
9 B2 3295 3049 14.12      
10 B2 1361 1259 45.78      
11 B2 803 743 61.92      
12 B2 494 457 1.82      

Unscaled Zero Point Vibrational Energy (zpe) 7522.1 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 6960.2 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 CISD/6-311G*
ABC
0.29190 0.03321 0.02982

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 1.239
C2 0.000 -0.662 1.239
Br3 0.000 1.770 -0.274
Br4 0.000 -1.770 -0.274
H5 0.000 1.202 2.172
H6 0.000 -1.202 2.172

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32321.87522.86351.07862.0842
C21.32322.86351.87522.08421.0786
Br31.87522.86353.53902.51153.8489
Br42.86351.87523.53903.84892.5115
H51.07862.08422.51153.84892.4037
H62.08421.07863.84892.51152.4037

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 126.214 C1 C2 H6 120.058
C2 C1 Br3 126.214 C2 C1 H5 120.058
Br3 C1 H5 113.728 Br4 C2 H6 113.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability