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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-2649.645991
Energy at 298.15K-2649.651523
Nuclear repulsion energy144.408671
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
(Å4/u)
Dep P Dep U
1 A' 3277 3135 2.88      
2 A' 3248 3107 4.06      
3 A' 3182 3045 0.32      
4 A' 1691 1617 45.32      
5 A' 1422 1360 8.71      
6 A' 1289 1233 27.17      
7 A' 1026 981 11.42      
8 A' 613 587 25.72      
9 A' 351 336 0.09      
10 A" 981 938 39.62      
11 A" 927 886 28.88      
12 A" 604 578 13.96      

Unscaled Zero Point Vibrational Energy (zpe) 9304.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8901.7 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
1.82395 0.13792 0.12822

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 -2.081 0.000
Br3 0.000 0.726 0.000
H4 1.532 -1.271 0.000
H5 -0.119 -3.119 0.000
H6 -1.511 -1.885 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32621.89361.08422.09002.1181
C21.32622.84212.13551.08721.0854
Br31.89362.84212.51763.84683.0172
H41.08422.13552.51762.47793.1049
H52.09001.08723.84682.47791.8600
H62.11811.08543.01723.10491.8600

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 119.667 C1 C2 H6 122.569
C2 C1 Br3 122.971 C2 C1 H4 124.439
Br3 C1 H4 112.590 H5 C2 H6 117.764
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 -0.147      
2 C -0.353      
3 Br -0.095      
4 H 0.212      
5 H 0.187      
6 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.244 -1.473 0.000 1.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.447 -0.531 0.000
y -0.531 -26.345 0.000
z 0.000 0.000 -32.392
Traceless
 xyz
x 0.922 -0.531 0.000
y -0.531 4.074 0.000
z 0.000 0.000 -4.996
Polar
3z2-r2-9.992
x2-y2-2.102
xy-0.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.925 0.570 0.000
y 0.570 8.271 0.000
z 0.000 0.000 2.868


<r2> (average value of r2) Å2
<r2> 91.990
(<r2>)1/2 9.591