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

using model chemistry: LSDA/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 LSDA/6-31+G**
 hartrees
Energy at 0K-2646.464805
Energy at 298.15K-2646.470296
Nuclear repulsion energy145.357333
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 LSDA/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' 3198 3150 0.12      
2 A' 3153 3106 2.83      
3 A' 3098 3051 0.88      
4 A' 1648 1623 69.01      
5 A' 1340 1320 8.53      
6 A' 1231 1213 17.52      
7 A' 977 962 17.76      
8 A' 618 609 26.07      
9 A' 338 333 0.00      
10 A" 935 921 37.84      
11 A" 881 868 43.08      
12 A" 600 591 23.40      

Unscaled Zero Point Vibrational Energy (zpe) 9008.4 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 8873.3 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 LSDA/6-31+G**
ABC
1.84737 0.13961 0.12980

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.452 -1.091 0.000
C2 -0.440 -2.074 0.000
Br3 0.000 0.721 0.000
H4 1.535 -1.251 0.000
H5 -0.093 -3.113 0.000
H6 -1.518 -1.885 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.32761.86781.09412.09422.1240
C21.32762.83002.13911.09501.0946
Br31.86782.83002.49883.83543.0160
H41.09412.13912.49882.47313.1175
H52.09421.09503.83542.47311.8811
H62.12401.09463.01603.11751.8811

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 119.328 C1 C2 H6 122.240
C2 C1 Br3 123.785 C2 C1 H4 123.803
Br3 C1 H4 112.412 H5 C2 H6 118.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C -0.279      
3 Br -0.126      
4 H 0.195      
5 H 0.179      
6 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.248 -1.337 0.000 1.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.225 -0.608 0.000
y -0.608 -27.299 0.000
z 0.000 0.000 -33.429
Traceless
 xyz
x 1.139 -0.608 0.000
y -0.608 4.028 0.000
z 0.000 0.000 -5.167
Polar
3z2-r2-10.334
x2-y2-1.926
xy-0.608
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.787 0.655 0.001
y 0.655 9.325 -0.001
z 0.001 -0.001 4.448


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