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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-2649.717672
Energy at 298.15K-2649.723198
Nuclear repulsion energy143.768576
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/6-31+G**
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' 3258 3141 2.66      
2 A' 3230 3115 3.69      
3 A' 3162 3049 0.06      
4 A' 1667 1608 57.80      
5 A' 1409 1358 11.04      
6 A' 1287 1241 27.42      
7 A' 1022 985 13.38      
8 A' 595 574 29.61      
9 A' 344 331 0.03      
10 A" 974 939 46.04      
11 A" 935 902 28.29      
12 A" 608 586 20.60      

Unscaled Zero Point Vibrational Energy (zpe) 9245.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 8914.8 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 B3LYP/6-31+G**
ABC
1.84712 0.13606 0.12673

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.455 -1.116 0.000
C2 -0.441 -2.097 0.000
Br3 0.000 0.731 0.000
H4 1.527 -1.271 0.000
H5 -0.099 -3.128 0.000
H6 -1.510 -1.915 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32811.90241.08332.08712.1208
C21.32812.86242.13421.08641.0848
Br31.90242.86242.51773.86083.0464
H41.08332.13422.51772.46893.1045
H52.08711.08643.86082.46891.8612
H62.12081.08483.04643.10451.8612

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 119.284 C1 C2 H6 122.706
C2 C1 Br3 123.784 C2 C1 H4 124.190
Br3 C1 H4 112.026 H5 C2 H6 118.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.112      
2 C -0.216      
3 Br -0.144      
4 H 0.165      
5 H 0.150      
6 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.242 -1.509 0.000 1.528
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.403 -0.541 0.000
y -0.541 -27.344 0.000
z 0.000 0.000 -33.506
Traceless
 xyz
x 1.022 -0.541 0.000
y -0.541 4.110 0.000
z 0.000 0.000 -5.132
Polar
3z2-r2-10.264
x2-y2-2.059
xy-0.541
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.719 0.684 0.000
y 0.684 9.243 0.000
z 0.000 0.000 4.449


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