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

using model chemistry: B1B95/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-2652.429294
Energy at 298.15K-2652.434826
Nuclear repulsion energy144.587370
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/cc-pVDZ
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' 3280 3152 0.92      
2 A' 3237 3112 3.67      
3 A' 3171 3048 0.00      
4 A' 1685 1620 49.90      
5 A' 1375 1322 7.69      
6 A' 1259 1210 24.40      
7 A' 1002 963 11.60      
8 A' 622 598 24.93      
9 A' 345 331 0.07      
10 A" 970 932 34.63      
11 A" 917 881 22.01      
12 A" 597 574 13.92      

Unscaled Zero Point Vibrational Energy (zpe) 9229.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8871.3 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/cc-pVDZ
ABC
1.83241 0.13819 0.12850

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.457 -1.106 0.000
C2 -0.442 -2.081 0.000
Br3 0.000 0.725 0.000
H4 1.534 -1.268 0.000
H5 -0.103 -3.118 0.000
H6 -1.515 -1.886 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32641.88721.08952.08902.1200
C21.32642.84102.13721.09131.0897
Br31.88722.84102.51503.84513.0189
H41.08952.13722.51502.47103.1107
H52.08901.09133.84512.47101.8735
H62.12001.08973.01893.11071.8735

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 119.230 C1 C2 H6 122.370
C2 C1 Br3 123.331 C2 C1 H4 124.125
Br3 C1 H4 112.544 H5 C2 H6 118.400
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.162      
2 C 0.041      
3 Br -0.041      
4 H 0.065      
5 H 0.050      
6 H 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.234 -1.345 0.000 1.365
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.746 -0.508 0.000
y -0.508 -26.707 0.000
z 0.000 0.000 -32.466
Traceless
 xyz
x 0.841 -0.508 0.000
y -0.508 3.899 0.000
z 0.000 0.000 -4.740
Polar
3z2-r2-9.480
x2-y2-2.039
xy-0.508
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.824 0.527 0.000
y 0.527 8.386 0.000
z 0.000 0.000 2.694


<r2> (average value of r2) Å2
<r2> 92.010
(<r2>)1/2 9.592