return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-65.619410
Energy at 298.15K 
HF Energy-65.619410
Nuclear repulsion energy41.714617
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 B3LYP/LANL2DZ
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' 3167 3044 9.72 129.95 0.06 0.11
2 A' 1443 1387 0.12 18.34 0.63 0.77
3 A' 1249 1201 59.87 1.88 0.65 0.78
4 A' 650 624 112.94 11.90 0.44 0.61
5 A' 514 494 24.63 23.20 0.25 0.39
6 A' 189 182 0.14 14.23 0.56 0.72
7 A" 3273 3146 1.70 61.75 0.75 0.86
8 A" 1139 1095 0.43 13.59 0.75 0.86
9 A" 809 777 10.66 9.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6216.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 5974.9 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 B3LYP/LANL2DZ
ABC
0.88075 0.05019 0.04793

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.825 -1.075 0.000
Cl2 -0.458 -2.421 0.000
I3 0.000 0.943 0.000
H4 1.415 -1.189 0.905
H5 1.415 -1.189 -0.905

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.85952.18021.08671.0867
Cl21.85953.39452.41792.4179
I32.18023.39452.71442.7144
H41.08672.41792.71441.8109
H51.08672.41792.71441.8109

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 114.108 Cl2 C1 H4 107.383
Cl2 C1 H5 107.383 I3 C1 H4 107.619
I3 C1 H5 107.619 H4 C1 H5 112.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.716      
2 Cl -0.038      
3 I 0.135      
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
  1.913 0.397 0.000 1.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.036 -3.439 0.000
y -3.439 -40.513 0.000
z 0.000 0.000 -38.757
Traceless
 xyz
x 2.600 -3.439 0.000
y -3.439 -2.616 0.000
z 0.000 0.000 0.017
Polar
3z2-r20.034
x2-y23.477
xy-3.439
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.472 -0.298 0.000
y -0.298 9.400 0.000
z 0.000 0.000 1.941


<r2> (average value of r2) Å2
<r2> 92.413
(<r2>)1/2 9.613