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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-2649.995833
Energy at 298.15K-2650.001376
Nuclear repulsion energy144.944272
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 B1B95/6-31+G**
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' 3282 3139 2.01      
2 A' 3247 3107 4.15      
3 A' 3182 3044 0.02      
4 A' 1685 1612 58.03      
5 A' 1403 1343 9.69      
6 A' 1286 1230 23.43      
7 A' 1019 974 14.20      
8 A' 617 590 27.47      
9 A' 344 329 0.00      
10 A" 980 938 41.11      
11 A" 938 897 34.59      
12 A" 613 586 20.35      

Unscaled Zero Point Vibrational Energy (zpe) 9297.9 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 8894.3 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 B1B95/6-31+G**
ABC
1.86168 0.13846 0.12887

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.452 -1.101 0.000
C2 -0.439 -2.081 0.000
Br3 0.000 0.725 0.000
H4 1.523 -1.259 0.000
H5 -0.096 -3.110 0.000
H6 -1.507 -1.898 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32521.88031.08252.08312.1150
C21.32522.84002.12721.08471.0835
Br31.88032.84002.50103.83603.0243
H41.08252.12722.50102.45903.0963
H52.08311.08473.83602.45901.8604
H62.11501.08353.02433.09631.8604

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 119.303 C1 C2 H6 122.500
C2 C1 Br3 123.827 C2 C1 H4 123.827
Br3 C1 H4 112.347 H5 C2 H6 118.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.135      
2 C -0.232      
3 Br -0.143      
4 H 0.181      
5 H 0.162      
6 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.244 -1.468 0.000 1.488
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.103 -0.547 0.000
y -0.547 -27.076 0.000
z 0.000 0.000 -33.215
Traceless
 xyz
x 1.043 -0.547 0.000
y -0.547 4.083 0.000
z 0.000 0.000 -5.126
Polar
3z2-r2-10.252
x2-y2-2.027
xy-0.547
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.611 0.663 0.000
y 0.663 9.054 0.001
z 0.000 0.001 4.302


<r2> (average value of r2) Å2
<r2> 92.086
(<r2>)1/2 9.596