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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-91.136169
Energy at 298.15K-91.141653
Nuclear repulsion energy50.604987
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/LANL2DZ
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' 3281 3154 10.90      
2 A' 3255 3128 4.77      
3 A' 3164 3041 0.22      
4 A' 1648 1584 57.03      
5 A' 1421 1366 10.63      
6 A' 1283 1233 36.91      
7 A' 1031 991 17.08      
8 A' 555 533 25.03      
9 A' 337 324 0.56      
10 A" 987 949 123.15      
11 A" 963 926 0.06      
12 A" 591 568 25.01      

Unscaled Zero Point Vibrational Energy (zpe) 9257.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8898.7 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/LANL2DZ
ABC
1.78896 0.12982 0.12104

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.466 -1.160 0.000
C2 -0.449 -2.139 0.000
Br3 0.000 0.750 0.000
H4 1.540 -1.312 0.000
H5 -0.122 -3.178 0.000
H6 -1.519 -1.950 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.34051.96561.08432.10172.1364
C21.34052.92322.15411.08901.0858
Br31.96562.92322.57333.92903.0975
H41.08432.15412.57332.49833.1242
H52.10171.08903.92902.49831.8593
H62.13641.08583.09753.12421.8593

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 119.426 C1 C2 H6 123.075
C2 C1 Br3 123.191 C2 C1 H4 125.012
Br3 C1 H4 111.797 H5 C2 H6 117.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 C -0.378      
3 Br -0.031      
4 H 0.257      
5 H 0.221      
6 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.237 -1.768 0.000 1.784
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.566 -0.476 0.000
y -0.476 -23.470 0.000
z 0.000 0.000 -30.187
Traceless
 xyz
x 1.262 -0.476 0.000
y -0.476 4.406 0.000
z 0.000 0.000 -5.668
Polar
3z2-r2-11.337
x2-y2-2.096
xy-0.476
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.848 0.444 0.000
y 0.444 8.341 0.000
z 0.000 0.000 1.600


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000