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All results from a given calculation for C2H3Br (vinyl bromide)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-2650.501833
Energy at 298.15K-2650.507402
HF Energy-2649.898893
Nuclear repulsion energy145.343687
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 MP2/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 A' 3301 3141 0.60      
2 A' 3255 3097 4.16      
3 A' 3195 3040 0.03      
4 A' 1650 1570 42.43      
5 A' 1419 1350 10.44      
6 A' 1295 1233 21.02      
7 A' 1028 979 8.50      
8 A' 644 613 19.18      
9 A' 351 334 0.02      
10 A" 991 942 36.08      
11 A" 921 876 26.14      
12 A" 609 580 15.37      

Unscaled Zero Point Vibrational Energy (zpe) 9329.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 8876.6 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 MP2/Def2TZVPP
ABC
1.83760 0.13971 0.12984

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.460 -1.097 0.000
C2 -0.444 -2.069 0.000
Br3 0.000 0.721 0.000
H4 1.527 -1.260 0.000
H5 -0.117 -3.099 0.000
H6 -1.505 -1.871 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32771.87571.07862.08332.1125
C21.32772.82522.13061.08091.0793
Br31.87572.82522.50083.82192.9974
H41.07862.13062.50082.46653.0930
H52.08331.08093.82192.46651.8539
H62.11251.07932.99743.09301.8539

picture of vinyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.400 C1 C2 H6 122.380
C2 C1 Br3 122.837 C2 C1 H4 124.289
Br3 C1 H4 112.874 H5 C2 H6 118.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability