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

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-2647.749386
Energy at 298.15K-2647.754886
HF Energy-2647.338032
Nuclear repulsion energy143.286131
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 QCISD(T)/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 A' 3266 3133        
2 A' 3237 3105        
3 A' 3171 3042        
4 A' 1659 1592        
5 A' 1428 1370        
6 A' 1298 1245        
7 A' 1037 995        
8 A' 602 578        
9 A' 348 334        
10 A" 959 920        
11 A" 895 859        
12 A" 584 560        

Unscaled Zero Point Vibrational Energy (zpe) 9241.6 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 8865.5 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 QCISD(T)/6-31G*
ABC
1.77535 0.13610 0.12641

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.470 -1.123 0.000
C2 -0.451 -2.093 0.000
Br3 0.000 0.731 0.000
H4 1.544 -1.291 0.000
H5 -0.138 -3.136 0.000
H6 -1.518 -1.882 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.33811.91271.08672.10362.1287
C21.33812.85992.15031.08941.0877
Br31.91272.85992.54413.87013.0224
H41.08672.15032.54412.49713.1188
H52.10361.08943.87012.49711.8648
H62.12871.08773.02243.11881.8648

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 119.777 C1 C2 H6 122.356
C2 C1 Br3 122.237 C2 C1 H4 124.628
Br3 C1 H4 113.135 H5 C2 H6 117.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability