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

using model chemistry: CID/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 CID/6-311G*
 hartrees
Energy at 0K-5222.085218
Energy at 298.15K-5222.092937
HF Energy-5221.617647
Nuclear repulsion energy427.411418
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 CID/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 3322 3086 1.89      
2 A1 1725 1603 26.51      
3 A1 1255 1166 1.95      
4 A1 613 570 7.71      
5 A1 115 107 0.04      
6 A2 956 888 0.00      
7 A2 394 366 0.00      
8 B1 728 677 74.95      
9 B2 3298 3064 14.35      
10 B2 1363 1266 45.03      
11 B2 805 748 60.93      
12 B2 495 460 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 7533.8 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 6999.6 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 CID/6-311G*
ABC
0.29220 0.03323 0.02984

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 1.238
C2 0.000 -0.661 1.238
Br3 0.000 1.769 -0.274
Br4 0.000 -1.769 -0.274
H5 0.000 1.201 2.171
H6 0.000 -1.201 2.171

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32251.87442.86211.07842.0833
C21.32252.86211.87442.08331.0784
Br31.87442.86213.53772.51073.8474
Br42.86211.87443.53773.84742.5107
H51.07842.08332.51073.84742.4023
H62.08331.07843.84742.51072.4023

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 126.222 C1 C2 H6 120.042
C2 C1 Br3 126.222 C2 C1 H5 120.042
Br3 C1 H5 113.736 Br4 C2 H6 113.736
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability