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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-7388.073005
Energy at 298.15K 
HF Energy-7388.073005
Nuclear repulsion energy281.831695
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' 3186 3042 0.82 96.30 0.09 0.16
2 A' 1482 1415 1.45 19.58 0.71 0.83
3 A' 1253 1196 62.00 1.70 0.55 0.71
4 A' 663 633 115.79 11.02 0.50 0.67
5 A' 552 527 7.56 18.43 0.23 0.38
6 A' 192 183 0.56 10.94 0.54 0.70
7 A" 3282 3133 1.14 60.64 0.75 0.86
8 A" 1154 1102 0.00 16.88 0.75 0.86
9 A" 808 771 9.36 6.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6286.2 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 6000.8 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 mPW1PW91/3-21G
ABC
0.86935 0.05067 0.04833

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 0.834 -1.063 0.000
Cl2 -0.461 -2.409 0.000
I3 0.000 0.938 0.000
H4 1.419 -1.199 0.903
H5 1.419 -1.199 -0.903

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.86842.16781.08471.0847
Cl21.86843.37942.41182.4118
I32.16783.37942.72002.7200
H41.08472.41182.72001.8057
H51.08472.41182.72001.8057

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 113.500 Cl2 C1 H4 106.472
Cl2 C1 H5 106.472 I3 C1 H4 108.888
I3 C1 H5 108.888 H4 C1 H5 112.675
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 -0.891      
2 Cl 0.019      
3 I 0.223      
4 H 0.324      
5 H 0.324      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.920 0.544 0.000 1.996
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.091 -3.441 0.000
y -3.441 -50.065 0.000
z 0.000 0.000 -47.666
Traceless
 xyz
x 2.774 -3.441 0.000
y -3.441 -3.187 0.000
z 0.000 0.000 0.412
Polar
3z2-r20.825
x2-y23.974
xy-3.441
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.090 0.144 0.000
y 0.144 9.045 0.000
z 0.000 0.000 2.821


<r2> (average value of r2) Å2
<r2> 198.400
(<r2>)1/2 14.085