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

using model chemistry: B2PLYP=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-5200.020239
Energy at 298.15K-5200.027915
HF Energy-5199.864173
Nuclear repulsion energy430.996139
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 B2PLYP=FULL/3-21G*
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 3262 3262 0.83      
2 A1 1628 1628 27.65      
3 A1 1228 1228 1.48      
4 A1 608 608 8.74      
5 A1 113 113 0.01      
6 A2 944 944 0.00      
7 A2 392 392 0.00      
8 B1 718 718 74.14      
9 B2 3237 3237 12.01      
10 B2 1348 1348 33.87      
11 B2 782 782 53.00      
12 B2 482 482 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 7371.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7371.2 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 B2PLYP=FULL/3-21G*
ABC
0.27381 0.03494 0.03099

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.285
C2 0.000 -0.665 1.285
Br3 0.000 1.723 -0.283
Br4 0.000 -1.723 -0.283
H5 0.000 1.235 2.203
H6 0.000 -1.235 2.203

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33071.89142.85721.08082.1107
C21.33072.85721.89142.11071.0808
Br31.89142.85723.44662.53393.8644
Br42.85721.89143.44663.86442.5339
H51.08082.11072.53393.86442.4699
H62.11071.08083.86442.53392.4699

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 124.010 C1 C2 H6 121.803
C2 C1 Br3 124.010 C2 C1 H5 121.803
Br3 C1 H5 114.187 Br4 C2 H6 114.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability