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All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-7386.775948
Energy at 298.15K 
HF Energy-7386.775948
Nuclear repulsion energy278.841284
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 PBEPBE/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' 3091 3063 1.24 98.12 0.09 0.16
2 A' 1427 1414 1.37 19.10 0.72 0.84
3 A' 1196 1185 58.50 2.75 0.70 0.82
4 A' 619 613 135.70 8.60 0.31 0.47
5 A' 525 520 14.00 14.85 0.25 0.40
6 A' 183 181 0.41 12.68 0.53 0.69
7 A" 3188 3159 0.26 59.62 0.75 0.86
8 A" 1101 1091 0.00 16.17 0.75 0.86
9 A" 776 769 9.19 6.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6052.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 5997.5 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 PBEPBE/3-21G
ABC
0.85675 0.04953 0.04727

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.840 -1.074 0.000
Cl2 -0.464 -2.438 0.000
I3 0.000 0.949 0.000
H4 1.427 -1.208 0.914
H5 1.427 -1.208 -0.914

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.88752.19031.09411.0941
Cl21.88753.41832.43392.4339
I32.19033.41832.74292.7429
H41.09412.43392.74291.8276
H51.09412.43392.74291.8276

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 113.708 Cl2 C1 H4 106.371
Cl2 C1 H5 106.371 I3 C1 H4 108.601
I3 C1 H5 108.601 H4 C1 H5 113.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.843      
2 Cl 0.018      
3 I 0.204      
4 H 0.310      
5 H 0.310      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.859 0.511 0.000 1.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.097 -3.329 0.000
y -3.329 -49.823 0.000
z 0.000 0.000 -47.704
Traceless
 xyz
x 2.667 -3.329 0.000
y -3.329 -2.922 0.000
z 0.000 0.000 0.256
Polar
3z2-r20.511
x2-y23.726
xy-3.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.158 0.174 0.000
y 0.174 9.535 0.000
z 0.000 0.000 2.889


<r2> (average value of r2) Å2
<r2> 202.128
(<r2>)1/2 14.217