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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-53.671887
Energy at 298.15K-53.673143
HF Energy-53.671887
Nuclear repulsion energy38.883769
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 HF/CEP-121G
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' 3352 3059 18.15 71.87 0.22 0.36
2 A' 1156 1055 132.39 8.23 0.17 0.28
3 A' 1076 982 10.25 2.68 0.42 0.59
4 A' 531 485 13.22 1.98 0.70 0.82
5 A" 1408 1285 59.77 4.48 0.75 0.86
6 A" 1219 1112 261.74 7.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4371.1 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 3988.6 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 HF/CEP-121G
ABC
2.12979 0.35088 0.30567

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.030 0.529 0.000
H2 -0.716 1.305 0.000
F3 0.030 -0.249 1.120
F4 0.030 -0.249 -1.120

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.07681.36341.3634
H21.07682.05572.0557
F31.36342.05572.2394
F41.36342.05572.2394

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 114.286 H2 C1 F4 114.286
F3 C1 F4 110.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.402      
2 H 0.153      
3 F -0.278      
4 F -0.278      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.747 2.234 0.000 2.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.089 -0.920 0.000
y -0.920 -14.547 0.000
z 0.000 0.000 -19.594
Traceless
 xyz
x 1.981 -0.920 0.000
y -0.920 2.794 0.000
z 0.000 0.000 -4.775
Polar
3z2-r2-9.551
x2-y2-0.542
xy-0.920
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.167 -0.200 0.000
y -0.200 1.591 0.000
z 0.000 0.000 1.878


<r2> (average value of r2) Å2
<r2> 32.022
(<r2>)1/2 5.659