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All results from a given calculation for CHF2 (difluoromethyl radical)

using model chemistry: PBEPBEultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A
Energy calculated at PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-236.770637
Energy at 298.15K 
HF Energy-236.770637
Nuclear repulsion energy67.862330
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 PBEPBEultrafine/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' 3022 2994 45.55 82.92 0.27 0.43
2 A' 1106 1096 55.65 7.07 0.18 0.30
3 A' 908 899 11.26 7.31 0.40 0.57
4 A' 497 492 4.04 2.15 0.75 0.86
5 A" 1341 1328 53.64 5.84 0.75 0.86
6 A" 1176 1165 110.86 7.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4024.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3987.3 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 PBEPBEultrafine/3-21G
ABC
2.17535 0.33758 0.29604

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.029 0.515 0.000
H2 -0.695 1.343 0.000
F3 0.029 -0.246 1.142
F4 0.029 -0.246 -1.142

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.10021.37231.3723
H21.10022.08652.0865
F31.37232.08652.2843
F41.37232.08652.2843

picture of difluoromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 114.660 H2 C1 F4 114.660
F3 C1 F4 112.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 H 0.198      
3 F -0.228      
4 F -0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.792 1.015 0.000 1.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.092 -0.915 0.000
y -0.915 -14.428 0.000
z 0.000 0.000 -17.017
Traceless
 xyz
x 0.631 -0.915 0.000
y -0.915 1.626 0.000
z 0.000 0.000 -2.257
Polar
3z2-r2-4.514
x2-y2-0.664
xy-0.915
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.005 -0.305 0.000
y -0.305 1.571 0.000
z 0.000 0.000 1.955


<r2> (average value of r2) Å2
<r2> 38.155
(<r2>)1/2 6.177