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: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-2652.153442
Energy at 298.15K-2652.158966
Nuclear repulsion energy143.655787
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/6-311G*
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 3125 6.18      
2 A' 3211 3103 3.79      
3 A' 3141 3035 1.20      
4 A' 1664 1608 51.24      
5 A' 1413 1365 10.71      
6 A' 1291 1248 29.57      
7 A' 1028 993 11.78      
8 A' 599 579 27.38      
9 A' 349 337 0.12      
10 A" 972 940 46.93      
11 A" 918 887 29.20      
12 A" 595 575 19.07      

Unscaled Zero Point Vibrational Energy (zpe) 9207.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8897.2 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/6-311G*
ABC
1.84087 0.13601 0.12665

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.457 -1.123 0.000
C2 -0.441 -2.094 0.000
Br3 0.000 0.732 0.000
H4 1.527 -1.279 0.000
H5 -0.111 -3.128 0.000
H6 -1.509 -1.908 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32241.90971.08202.08372.1162
C21.32242.85962.13031.08561.0836
Br31.90972.85962.52503.86103.0401
H41.08202.13032.52502.46973.1002
H52.08371.08563.86102.46971.8556
H62.11621.08363.04013.10021.8556

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 119.514 C1 C2 H6 122.867
C2 C1 Br3 123.416 C2 C1 H4 124.436
Br3 C1 H4 112.149 H5 C2 H6 117.619
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.302      
2 C -0.386      
3 Br -0.014      
4 H 0.251      
5 H 0.221      
6 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.239 -1.505 0.000 1.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.116 -0.507 0.000
y -0.507 -26.960 0.000
z 0.000 0.000 -33.208
Traceless
 xyz
x 0.968 -0.507 0.000
y -0.507 4.202 0.000
z 0.000 0.000 -5.170
Polar
3z2-r2-10.340
x2-y2-2.156
xy-0.507
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.860 0.569 0.000
y 0.569 8.696 0.000
z 0.000 0.000 2.855


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