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

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-2647.339585
Energy at 298.15K-2647.345264
HF Energy-2647.339585
Nuclear repulsion energy144.908081
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 HF/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' 3441 3092 8.64      
2 A' 3428 3080 2.74      
3 A' 3347 3007 2.10      
4 A' 1832 1646 35.00      
5 A' 1541 1385 11.37      
6 A' 1401 1258 40.00      
7 A' 1118 1005 7.99      
8 A' 643 578 30.40      
9 A' 376 338 0.14      
10 A" 1092 981 65.09      
11 A" 1084 974 5.80      
12 A" 659 592 13.86      

Unscaled Zero Point Vibrational Energy (zpe) 9981.0 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 8967.9 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 HF/6-31G*
ABC
1.85459 0.13872 0.12906

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.457 -1.115 0.000
C2 -0.440 -2.071 0.000
Br3 0.000 0.725 0.000
H4 1.515 -1.280 0.000
H5 -0.125 -3.099 0.000
H6 -1.495 -1.873 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.31121.89581.07082.06782.0944
C21.31122.83022.10921.07541.0735
Br31.89582.83022.51343.82602.9971
H41.07082.10922.51342.44913.0682
H52.06781.07543.82602.44911.8389
H62.09441.07352.99713.06821.8389

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 119.764 C1 C2 H6 122.552
C2 C1 Br3 122.845 C2 C1 H4 124.308
Br3 C1 H4 112.847 H5 C2 H6 117.684
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.157      
2 C -0.357      
3 Br -0.130      
4 H 0.235      
5 H 0.199      
6 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.245 -1.794 0.000 1.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.865 -0.443 -0.011
y -0.443 -26.587 0.013
z -0.011 0.013 -32.964
Traceless
 xyz
x 0.911 -0.443 -0.011
y -0.443 4.328 0.013
z -0.011 0.013 -5.238
Polar
3z2-r2-10.477
x2-y2-2.278
xy-0.443
xz-0.011
yz0.013


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.864 0.692 -0.002
y 0.692 8.034 0.006
z -0.002 0.006 2.804


<r2> (average value of r2) Å2
<r2> 91.704
(<r2>)1/2 9.576