return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/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 HF/cc-pVDZ
 hartrees
Energy at 0K-2649.843428
Energy at 298.15K-2649.849104
Nuclear repulsion energy144.608098
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/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' 3416 3102 3.23      
2 A' 3395 3082 5.50      
3 A' 3313 3008 0.74      
4 A' 1814 1647 40.97      
5 A' 1502 1364 10.46      
6 A' 1371 1245 36.12      
7 A' 1097 996 9.09      
8 A' 646 587 29.62      
9 A' 372 338 0.12      
10 A" 1070 971 58.37      
11 A" 1059 961 8.74      
12 A" 648 588 15.04      

Unscaled Zero Point Vibrational Energy (zpe) 9851.1 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 8944.8 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/cc-pVDZ
ABC
1.84735 0.13814 0.12853

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.456 -1.114 0.000
C2 -0.441 -2.077 0.000
Br3 0.000 0.726 0.000
H4 1.523 -1.280 0.000
H5 -0.113 -3.109 0.000
H6 -1.504 -1.881 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.31531.89631.07962.07422.1047
C21.31532.83722.11911.08321.0813
Br31.89632.83722.51873.83683.0097
H41.07962.11912.51872.45393.0861
H52.07421.08323.83682.45391.8558
H62.10471.08133.00973.08611.8558

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 119.402 C1 C2 H6 122.549
C2 C1 Br3 123.096 C2 C1 H4 124.171
Br3 C1 H4 112.734 H5 C2 H6 118.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 C 0.026      
3 Br -0.071      
4 H 0.084      
5 H 0.066      
6 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.238 -1.715 0.000 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.028 -0.409 0.000
y -0.409 -26.838 0.000
z 0.000 0.000 -33.161
Traceless
 xyz
x 0.971 -0.409 0.000
y -0.409 4.256 0.000
z 0.000 0.000 -5.227
Polar
3z2-r2-10.455
x2-y2-2.190
xy-0.409
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.746 0.671 0.000
y 0.671 8.183 0.000
z 0.000 0.000 2.651


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