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 CCl3 (Trichloromethyl radical)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 2A1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-1417.994342
Energy at 298.15K-1417.994329
HF Energy-1417.994342
Nuclear repulsion energy250.100175
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/6-31G(2df,p)
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 476 471 0.05      
2 A1 326 323 0.27      
3 E 861 852 197.00      
3 E 861 852 196.98      
4 E 264 261 0.03      
4 E 264 261 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 1525.6 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 1509.9 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 PBEPBE/6-31G(2df,p)
ABC
0.11099 0.11099 0.05589

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.282
Cl2 0.000 1.696 -0.033
Cl3 1.468 -0.848 -0.033
Cl4 -1.468 -0.848 -0.033

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 Cl4
C11.72481.72481.7248
Cl21.72482.93692.9369
Cl31.72482.93692.9369
Cl41.72482.93692.9369

picture of Trichloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 116.728 Cl2 C1 Cl4 116.728
Cl3 C1 Cl4 116.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 Cl -0.017      
3 Cl -0.017      
4 Cl -0.017      


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 -0.153 0.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.283 0.000 0.000
y 0.000 -41.283 0.000
z 0.000 0.000 -42.808
Traceless
 xyz
x 0.763 0.000 0.000
y 0.000 0.763 0.000
z 0.000 0.000 -1.525
Polar
3z2-r2-3.050
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.323 0.000 0.000
y 0.000 8.323 0.000
z 0.000 0.000 4.295


<r2> (average value of r2) Å2
<r2> 173.272
(<r2>)1/2 13.163