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All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-7388.257951
Energy at 298.15K 
HF Energy-7388.257951
Nuclear repulsion energy286.185438
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 mPW1PW91/3-21G*
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' 3163 3003 0.90 83.41 0.09 0.16
2 A' 1498 1423 0.92 17.75 0.72 0.84
3 A' 1264 1200 50.54 4.74 0.28 0.44
4 A' 709 673 97.74 5.00 0.71 0.83
5 A' 560 532 13.36 20.68 0.17 0.29
6 A' 197 187 0.24 7.48 0.45 0.62
7 A" 3247 3083 1.79 56.04 0.75 0.86
8 A" 1183 1123 0.05 9.94 0.75 0.86
9 A" 815 774 8.25 2.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6317.5 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 5999.1 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 mPW1PW91/3-21G*
ABC
0.90626 0.05244 0.05005

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.806 -1.091 0.000
Cl2 -0.450 -2.358 0.000
I3 0.000 0.925 0.000
H4 1.407 -1.195 0.899
H5 1.407 -1.195 -0.899

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.78402.17101.08661.0866
Cl21.78403.31342.36862.3686
I32.17103.31342.69862.6986
H41.08662.36862.69861.7979
H51.08662.36862.69861.7979

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 113.455 Cl2 C1 H4 108.766
Cl2 C1 H5 108.766 I3 C1 H4 107.120
I3 C1 H5 107.120 H4 C1 H5 111.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.701      
2 Cl 0.005      
3 I 0.085      
4 H 0.306      
5 H 0.306      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.583 0.072 0.000 1.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.751 -3.112 0.000
y -3.112 -48.002 0.000
z 0.000 0.000 -47.576
Traceless
 xyz
x 2.038 -3.112 0.000
y -3.112 -1.338 0.000
z 0.000 0.000 -0.699
Polar
3z2-r2-1.399
x2-y22.251
xy-3.112
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.644 0.241 0.000
y 0.241 9.623 0.000
z 0.000 0.000 4.794


<r2> (average value of r2) Å2
<r2> 192.185
(<r2>)1/2 13.863