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

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2623.024612
Energy at 298.15K-2623.030088
Nuclear repulsion energy143.694324
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/STO-3G
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' 3546 3164 0.88      
2 A' 3436 3066 1.12      
3 A' 3391 3026 32.48      
4 A' 1795 1602 28.73      
5 A' 1533 1368 10.49      
6 A' 1391 1242 13.69      
7 A' 1106 987 7.65      
8 A' 697 622 15.00      
9 A' 364 325 0.26      
10 A" 1066 951 15.60      
11 A" 972 867 17.89      
12 A" 623 556 2.64      

Unscaled Zero Point Vibrational Energy (zpe) 9959.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 8887.9 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 B3LYP/STO-3G
ABC
1.84880 0.13580 0.12651

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.452 -1.103 0.000
C2 -0.437 -2.102 0.000
Br3 0.000 0.732 0.000
H4 1.535 -1.302 0.000
H5 -0.102 -3.147 0.000
H6 -1.521 -1.932 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.33811.88961.10062.11812.1400
C21.33812.86772.12831.09711.0965
Br31.88962.86772.54793.88023.0672
H41.10062.12832.54792.46663.1195
H52.11811.09713.88022.46661.8676
H62.14001.09653.06723.11951.8676

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 120.545 C1 C2 H6 122.728
C2 C1 Br3 124.477 C2 C1 H4 121.247
Br3 C1 H4 114.276 H5 C2 H6 116.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.141      
2 C -0.159      
3 Br 0.034      
4 H 0.094      
5 H 0.086      
6 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.245 -0.911 0.000 0.944
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.939 -0.361 0.000
y -0.361 -26.414 0.000
z 0.000 0.000 -29.096
Traceless
 xyz
x 0.816 -0.361 0.000
y -0.361 1.604 0.000
z 0.000 0.000 -2.419
Polar
3z2-r2-4.839
x2-y2-0.525
xy-0.361
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.170 0.323 0.000
y 0.323 4.904 0.000
z 0.000 0.000 0.508


<r2> (average value of r2) Å2
<r2> 92.112
(<r2>)1/2 9.598