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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2650.496236
Energy at 298.15K-2650.501806
HF Energy-2649.943243
Nuclear repulsion energy145.314646
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/cc-pVTZ
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' 3299 3132 0.61      
2 A' 3252 3088 4.60      
3 A' 3193 3032 0.02      
4 A' 1649 1566 41.22      
5 A' 1415 1344 10.33      
6 A' 1293 1227 21.24      
7 A' 1027 975 8.26      
8 A' 641 608 19.22      
9 A' 349 331 0.02      
10 A" 991 941 34.34      
11 A" 925 879 28.85      
12 A" 607 576 14.18      

Unscaled Zero Point Vibrational Energy (zpe) 9319.8 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 8849.1 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/cc-pVTZ
ABC
1.83672 0.13967 0.12980

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.460 -1.098 0.000
C2 -0.445 -2.070 0.000
Br3 0.000 0.721 0.000
H4 1.527 -1.262 0.000
H5 -0.116 -3.100 0.000
H6 -1.506 -1.872 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32761.87661.07872.08292.1128
C21.32762.82582.13041.08111.0795
Br31.87662.82582.50233.82242.9982
H41.07872.13042.50232.46533.0931
H52.08291.08113.82242.46531.8543
H62.11281.07952.99823.09311.8543

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 119.352 C1 C2 H6 122.405
C2 C1 Br3 122.825 C2 C1 H4 124.259
Br3 C1 H4 112.916 H5 C2 H6 118.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability