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

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-2652.251094
Energy at 298.15K-2652.256639
Nuclear repulsion energy144.073191
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/cc-pVTZ
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' 3234 3126 2.35      
2 A' 3210 3103 3.11      
3 A' 3142 3038 0.21      
4 A' 1660 1605 52.33      
5 A' 1409 1362 10.43      
6 A' 1284 1241 28.15      
7 A' 1022 988 9.57      
8 A' 603 583 26.45      
9 A' 347 336 0.07      
10 A" 978 946 35.72      
11 A" 941 910 26.95      
12 A" 601 581 15.76      

Unscaled Zero Point Vibrational Energy (zpe) 9216.5 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 8908.7 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 B3LYP/cc-pVTZ
ABC
1.85149 0.13680 0.12738

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.455 -1.119 0.000
C2 -0.440 -2.088 0.000
Br3 0.000 0.730 0.000
H4 1.523 -1.275 0.000
H5 -0.109 -3.119 0.000
H6 -1.504 -1.900 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.31911.90391.07902.07752.1091
C21.31912.85172.12451.08261.0805
Br31.90392.85172.51763.84983.0293
H41.07902.12452.51762.46183.0907
H52.07751.08263.84982.46181.8525
H62.10911.08053.02933.09071.8525

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 119.447 C1 C2 H6 122.720
C2 C1 Br3 123.428 C2 C1 H4 124.422
Br3 C1 H4 112.150 H5 C2 H6 117.833
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 C -0.243      
3 Br -0.052      
4 H 0.139      
5 H 0.131      
6 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.238 -1.470 0.000 1.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.260 -0.477 0.000
y -0.477 -27.324 0.000
z 0.000 0.000 -33.028
Traceless
 xyz
x 0.916 -0.477 0.000
y -0.477 3.820 0.000
z 0.000 0.000 -4.736
Polar
3z2-r2-9.471
x2-y2-1.936
xy-0.477
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.535 0.572 0.000
y 0.572 9.220 0.000
z 0.000 0.000 3.833


<r2> (average value of r2) Å2
<r2> 92.920
(<r2>)1/2 9.639