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

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-2649.870662
Energy at 298.15K-2649.876220
HF Energy-2649.870662
Nuclear repulsion energy145.197193
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 B3LYP/6-31G(2df,p)
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' 3251 3138 2.48      
2 A' 3216 3104 3.79      
3 A' 3157 3047 0.13      
4 A' 1669 1611 40.73      
5 A' 1411 1361 7.31      
6 A' 1288 1243 22.81      
7 A' 1026 990 9.19      
8 A' 626 604 22.64      
9 A' 349 337 0.04      
10 A" 987 953 27.86      
11 A" 934 901 20.16      
12 A" 611 589 10.75      

Unscaled Zero Point Vibrational Energy (zpe) 9262.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8938.5 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 B3LYP/6-31G(2df,p)
ABC
1.85003 0.13925 0.12950

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.455 -1.099 0.000
C2 -0.440 -2.074 0.000
Br3 0.000 0.723 0.000
H4 1.525 -1.263 0.000
H5 -0.112 -3.108 0.000
H6 -1.507 -1.885 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32401.87721.08252.08822.1140
C21.32402.83092.12601.08521.0834
Br31.87722.83092.50393.83253.0117
H41.08252.12602.50392.46673.0953
H52.08821.08523.83252.46671.8554
H62.11401.08343.01173.09531.8554

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 119.842 C1 C2 H6 122.518
C2 C1 Br3 123.407 C2 C1 H4 123.812
Br3 C1 H4 112.781 H5 C2 H6 117.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability