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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-2649.968019
Energy at 298.15K-2649.973562
Nuclear repulsion energy145.010929
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 B1B95/6-31G*
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' 3298 3131 2.80      
2 A' 3268 3102 4.15      
3 A' 3202 3040 0.18      
4 A' 1708 1621 43.65      
5 A' 1426 1353 8.35      
6 A' 1292 1227 27.00      
7 A' 1027 975 10.92      
8 A' 621 590 25.20      
9 A' 350 333 0.06      
10 A" 989 939 36.43      
11 A" 936 889 29.14      
12 A" 609 578 13.55      

Unscaled Zero Point Vibrational Energy (zpe) 9363.6 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 8888.9 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 B1B95/6-31G*
ABC
1.83435 0.13914 0.12933

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.459 -1.104 0.000
C2 -0.442 -2.072 0.000
Br3 0.000 0.723 0.000
H4 1.528 -1.268 0.000
H5 -0.120 -3.108 0.000
H6 -1.507 -1.874 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32261.88421.08172.08512.1109
C21.32262.83022.12811.08441.0829
Br31.88422.83022.51023.83263.0023
H41.08172.12812.51022.46943.0947
H52.08511.08443.83262.46941.8566
H62.11091.08293.00233.09471.8566

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 119.728 C1 C2 H6 122.387
C2 C1 Br3 122.946 C2 C1 H4 124.238
Br3 C1 H4 112.816 H5 C2 H6 117.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.142      
2 C -0.337      
3 Br -0.098      
4 H 0.206      
5 H 0.181      
6 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.243 -1.449 0.000 1.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.466 -0.538 0.000
y -0.538 -26.376 0.000
z 0.000 0.000 -32.325
Traceless
 xyz
x 0.884 -0.538 0.000
y -0.538 4.019 0.000
z 0.000 0.000 -4.904
Polar
3z2-r2-9.808
x2-y2-2.090
xy-0.538
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.901 0.559 0.000
y 0.559 8.182 0.000
z 0.000 0.000 2.852


<r2> (average value of r2) Å2
<r2> 91.368
(<r2>)1/2 9.559