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 CCl3I (trichloroiodomethane)

using model chemistry: TPSSh/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/cc-pVTZ-PP
 hartrees
Energy at 0K-1714.416706
Energy at 298.15K 
HF Energy-1714.416706
Nuclear repulsion energy493.335745
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 TPSSh/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 667 667 170.09 19.88 0.49 0.66
2 A1 401 401 0.29 16.87 0.00 0.00
3 A1 198 198 0.09 9.82 0.32 0.48
4 E 726 726 145.91 2.01 0.75 0.86
4 E 726 726 145.91 2.01 0.75 0.86
5 E 277 277 0.24 4.18 0.75 0.86
5 E 277 277 0.24 4.18 0.75 0.86
6 E 163 163 0.02 3.29 0.75 0.86
6 E 163 163 0.02 3.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1799.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1799.0 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 TPSSh/cc-pVTZ-PP
ABC
0.05721 0.02806 0.02806

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVTZ-PP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.780
I2 0.000 0.000 1.408
Cl3 0.000 1.676 -1.371
Cl4 1.451 -0.838 -1.371
Cl5 -1.451 -0.838 -1.371

Atom - Atom Distances (Å)
  C1 I2 Cl3 Cl4 Cl5
C12.18821.77711.77711.7771
I22.18823.24543.24543.2454
Cl31.77713.24542.90292.9029
Cl41.77713.24542.90292.9029
Cl51.77713.24542.90292.9029

picture of trichloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
I2 C1 Cl3 109.422 I2 C1 Cl4 109.422
I2 C1 Cl5 109.422 Cl3 C1 Cl4 109.520
Cl3 C1 Cl5 109.520 Cl4 C1 Cl5 109.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.080      
2 I 0.121      
3 Cl -0.014      
4 Cl -0.014      
5 Cl -0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.381 0.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.794 0.000 0.000
y 0.000 10.795 -0.000
z 0.000 -0.000 13.712


<r2> (average value of r2) Å2
<r2> 335.220
(<r2>)1/2 18.309