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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-2649.650716
Energy at 298.15K-2649.656253
Nuclear repulsion energy144.465667
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 B3PW91/6-31G**
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' 3275 3139 2.27      
2 A' 3244 3109 3.97      
3 A' 3176 3043 0.11      
4 A' 1687 1617 46.61      
5 A' 1409 1350 8.44      
6 A' 1283 1229 26.33      
7 A' 1020 977 11.71      
8 A' 613 587 25.79      
9 A' 350 335 0.09      
10 A" 979 938 38.35      
11 A" 928 890 27.58      
12 A" 605 580 13.55      

Unscaled Zero Point Vibrational Energy (zpe) 9283.6 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 8897.4 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 B3PW91/6-31G**
ABC
1.82582 0.13802 0.12832

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.460 -1.110 0.000
C2 -0.444 -2.080 0.000
Br3 0.000 0.726 0.000
H4 1.532 -1.270 0.000
H5 -0.118 -3.117 0.000
H6 -1.510 -1.883 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32561.89311.08362.08812.1163
C21.32562.84122.13501.08641.0846
Br31.89312.84122.51593.84473.0149
H41.08362.13502.51592.47643.1030
H52.08811.08643.84472.47641.8599
H62.11631.08463.01493.10301.8599

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 119.600 C1 C2 H6 122.504
C2 C1 Br3 122.975 C2 C1 H4 124.492
Br3 C1 H4 112.533 H5 C2 H6 117.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.112      
2 C -0.262      
3 Br -0.099      
4 H 0.171      
5 H 0.147      
6 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.242 -1.468 0.000 1.488
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.466 -0.531 0.000
y -0.531 -26.380 0.000
z 0.000 0.000 -32.353
Traceless
 xyz
x 0.900 -0.531 0.000
y -0.531 4.029 0.000
z 0.000 0.000 -4.930
Polar
3z2-r2-9.860
x2-y2-2.086
xy-0.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.962 0.572 0.000
y 0.572 8.308 0.000
z 0.000 0.000 2.904


<r2> (average value of r2) Å2
<r2> 91.932
(<r2>)1/2 9.588