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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-2649.697492
Energy at 298.15K-2649.703017
Nuclear repulsion energy143.781034
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 B3LYP/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' 3261 3133 3.34      
2 A' 3234 3107 3.99      
3 A' 3165 3041 0.22      
4 A' 1681 1615 44.45      
5 A' 1414 1359 8.99      
6 A' 1284 1234 29.89      
7 A' 1022 982 10.23      
8 A' 597 574 26.89      
9 A' 348 334 0.14      
10 A" 979 940 36.56      
11 A" 929 893 21.94      
12 A" 602 578 12.07      

Unscaled Zero Point Vibrational Energy (zpe) 9257.3 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 8894.4 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 B3LYP/6-31G**
ABC
1.82131 0.13657 0.12704

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.461 -1.120 0.000
C2 -0.444 -2.089 0.000
Br3 0.000 0.730 0.000
H4 1.532 -1.279 0.000
H5 -0.121 -3.126 0.000
H6 -1.511 -1.893 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32591.90701.08302.08862.1172
C21.32592.85432.13601.08631.0843
Br31.90702.85432.52673.85843.0267
H41.08302.13602.52672.47883.1038
H52.08861.08633.85842.47881.8584
H62.11721.08433.02673.10381.8584

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 119.633 C1 C2 H6 122.586
C2 C1 Br3 122.976 C2 C1 H4 124.613
Br3 C1 H4 112.411 H5 C2 H6 117.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.071      
2 C -0.209      
3 Br -0.109      
4 H 0.141      
5 H 0.120      
6 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.246 -1.466 0.000 1.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.670 -0.533 0.000
y -0.533 -26.580 0.000
z 0.000 0.000 -32.355
Traceless
 xyz
x 0.798 -0.533 0.000
y -0.533 3.932 0.000
z 0.000 0.000 -4.730
Polar
3z2-r2-9.460
x2-y2-2.090
xy-0.533
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.959 0.565 0.000
y 0.565 8.342 0.000
z 0.000 0.000 2.884


<r2> (average value of r2) Å2
<r2> 92.717
(<r2>)1/2 9.629