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

using model chemistry: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-2649.944931
Energy at 298.15K-2649.950622
Nuclear repulsion energy145.144717
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 HF/aug-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' 3387 3083 5.16      
2 A' 3371 3069 2.86      
3 A' 3292 2997 0.85      
4 A' 1795 1634 46.49      
5 A' 1520 1384 12.78      
6 A' 1389 1264 33.85      
7 A' 1108 1009 7.41      
8 A' 650 592 28.04      
9 A' 373 339 0.06      
10 A" 1078 981 57.28      
11 A" 1077 981 11.25      
12 A" 653 595 18.04      

Unscaled Zero Point Vibrational Energy (zpe) 9846.3 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 8964.1 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 HF/aug-cc-pVTZ
ABC
1.87589 0.13893 0.12935

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.453 -1.112 0.000
C2 -0.437 -2.070 0.000
Br3 0.000 0.724 0.000
H4 1.510 -1.277 0.000
H5 -0.111 -3.094 0.000
H6 -1.492 -1.879 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.30801.89161.06942.06012.0909
C21.30802.82872.10251.07391.0720
Br31.89162.82872.50693.81943.0006
H41.06942.10252.50692.43453.0616
H52.06011.07393.81942.43451.8390
H62.09091.07203.00063.06161.8390

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 119.417 C1 C2 H6 122.620
C2 C1 Br3 123.240 C2 C1 H4 124.038
Br3 C1 H4 112.722 H5 C2 H6 117.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 C -0.969      
3 Br -0.064      
4 H 0.480      
5 H 0.390      
6 H 0.516      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.219 -1.743 0.000 1.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.267 -0.357 0.000
y -0.357 -27.289 0.000
z 0.000 0.000 -33.455
Traceless
 xyz
x 1.106 -0.357 0.000
y -0.357 4.072 0.000
z 0.000 0.000 -5.177
Polar
3z2-r2-10.355
x2-y2-1.977
xy-0.357
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.233 0.692 0.000
y 0.692 9.384 0.000
z 0.000 0.000 5.212


<r2> (average value of r2) Å2
<r2> 91.869
(<r2>)1/2 9.585