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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: B97D3/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/STO-3G
 hartrees
Energy at 0K-9442.861396
Energy at 298.15K 
HF Energy-9442.861396
Nuclear repulsion energy453.483489
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 B97D3/STO-3G
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' 3255 3255 1.10 45.96 0.13 0.22
2 A' 1580 1580 0.42 17.05 0.71 0.83
3 A' 1289 1289 75.71 2.95 0.73 0.85
4 A' 719 719 72.93 6.10 0.75 0.86
5 A' 551 551 13.18 14.94 0.19 0.31
6 A' 157 157 0.51 5.96 0.51 0.68
7 A" 3382 3382 1.31 34.89 0.75 0.86
8 A" 1207 1207 0.01 12.62 0.75 0.86
9 A" 816 816 0.37 2.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6477.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6477.7 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 B97D3/STO-3G
ABC
0.84395 0.02754 0.02681

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.070 0.000
Br2 1.928 0.800 0.000
I3 -1.263 -0.712 0.000
H4 -0.270 1.658 0.901
H5 -0.270 1.658 -0.901

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.94642.18391.10951.1095
Br21.94643.53042.52522.5252
I32.18393.53042.72312.7231
H41.10952.52522.72311.8027
H51.10952.52522.72311.8027

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 117.347 Br2 C1 H4 108.316
Br2 C1 H5 108.316 I3 C1 H4 106.974
I3 C1 H5 106.974 H4 C1 H5 108.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 Br 0.015      
3 I 0.021      
4 H 0.108      
5 H 0.108      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.276 1.412 0.000 1.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.092 -1.108 0.000
y -1.108 -47.620 0.000
z 0.000 0.000 -48.982
Traceless
 xyz
x -2.791 -1.108 0.000
y -1.108 2.417 0.000
z 0.000 0.000 0.373
Polar
3z2-r20.747
x2-y2-3.472
xy-1.108
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.352 1.908 0.000
y 1.908 3.168 0.000
z 0.000 0.000 1.049


<r2> (average value of r2) Å2
<r2> 308.690
(<r2>)1/2 17.570