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

using model chemistry: HF/CEP-31G*

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-31G*
 hartrees
Energy at 0K-53.747070
Energy at 298.15K-53.748383
HF Energy-53.747070
Nuclear repulsion energy39.984562
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-31G*
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' 3391 3045 54.71 75.80 0.26 0.41
2 A' 1280 1150 127.32 4.45 0.18 0.30
3 A' 1166 1047 29.58 2.55 0.62 0.76
4 A' 588 528 8.13 1.08 0.70 0.82
5 A" 1473 1323 121.03 1.84 0.75 0.86
6 A" 1310 1176 249.73 5.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4603.8 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 4134.2 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-31G*
ABC
2.25156 0.37199 0.32448

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.031 0.510 0.000
H2 -0.739 1.274 0.000
F3 0.031 -0.241 1.087
F4 0.031 -0.241 -1.087

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.08381.32121.3212
H21.08382.01672.0167
F31.32122.01672.1739
F41.32122.01672.1739

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 113.604 H2 C1 F4 113.604
F3 C1 F4 110.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.219      
2 H 0.173      
3 F -0.196      
4 F -0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.742 1.540 0.000 1.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.016 -0.950 0.000
y -0.950 -14.589 0.000
z 0.000 0.000 -17.919
Traceless
 xyz
x 1.238 -0.950 0.000
y -0.950 1.879 0.000
z 0.000 0.000 -3.116
Polar
3z2-r2-6.233
x2-y2-0.427
xy-0.950
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.308 -0.150 0.000
y -0.150 1.678 0.000
z 0.000 0.000 1.819


<r2> (average value of r2) Å2
<r2> 30.472
(<r2>)1/2 5.520