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

using model chemistry: QCISD/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/6-31G*
 hartrees
Energy at 0K-2647.736525
Energy at 298.15K-2647.742054
HF Energy-2647.338484
Nuclear repulsion energy143.537665
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3283 3126 4.04      
2 A' 3257 3101 4.49      
3 A' 3190 3038 0.68      
4 A' 1690 1609 29.44      
5 A' 1440 1372 8.99      
6 A' 1308 1246 28.52      
7 A' 1046 996 7.82      
8 A' 608 579 20.29      
9 A' 352 335 0.12      
10 A" 977 930 44.45      
11 A" 924 880 19.37      
12 A" 595 567 11.54      

Unscaled Zero Point Vibrational Energy (zpe) 9334.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 8889.2 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 QCISD/6-31G*
ABC
1.78753 0.13653 0.12684

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.466 -1.123 0.000
C2 -0.448 -2.096 0.000
Br3 0.000 0.733 0.000
H4 1.539 -1.289 0.000
H5 -0.131 -3.137 0.000
H6 -1.517 -1.897 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.33491.91341.08622.10072.1286
C21.33492.86392.14521.08861.0872
Br31.91342.86392.54073.87213.0359
H41.08622.14522.54072.49143.1164
H52.10071.08863.87212.49141.8600
H62.12861.08723.03593.11641.8600

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 119.838 C1 C2 H6 122.675
C2 C1 Br3 122.690 C2 C1 H4 124.453
Br3 C1 H4 112.857 H5 C2 H6 117.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability