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

using model chemistry: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-5217.155710
Energy at 298.15K-5217.163319
HF Energy-5216.642069
Nuclear repulsion energy428.439072
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 CCSD/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 3266 3084 1.21      
2 A1 1673 1580 21.63      
3 A1 1210 1142 2.36      
4 A1 587 554 8.83      
5 A1 118 112 0.05      
6 A2 900 850 0.00      
7 A2 371 350 0.00      
8 B1 709 669 58.74      
9 B2 3244 3064 11.05      
10 B2 1319 1246 38.99      
11 B2 770 727 46.26      
12 B2 470 444 2.93      

Unscaled Zero Point Vibrational Energy (zpe) 7318.1 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 6910.5 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 CCSD/6-31G*
ABC
0.27733 0.03418 0.03043

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 1.274
C2 0.000 -0.667 1.274
Br3 0.000 1.743 -0.281
Br4 0.000 -1.743 -0.281
H5 0.000 1.228 2.203
H6 0.000 -1.228 2.203

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33311.89202.86831.08532.1101
C21.33312.86831.89202.11011.0853
Br31.89202.86833.48612.53743.8731
Br42.86831.89203.48613.87312.5374
H51.08532.11012.53743.87312.4563
H62.11011.08533.87312.53742.4563

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 124.680 C1 C2 H6 121.160
C2 C1 Br3 124.680 C2 C1 H5 121.160
Br3 C1 H5 114.161 Br4 C2 H6 114.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability