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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G*
 hartrees
Energy at 0K-236.778370
Energy at 298.15K-236.779587
HF Energy-236.778370
Nuclear repulsion energy68.672569
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 PBE1PBE/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' 3161 3034 35.24      
2 A' 1165 1118 67.94      
3 A' 946 908 11.55      
4 A' 518 497 6.35      
5 A" 1404 1348 76.29      
6 A" 1241 1191 109.86      

Unscaled Zero Point Vibrational Energy (zpe) 4217.0 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 4047.4 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 PBE1PBE/3-21G*
ABC
2.21833 0.34623 0.30327

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.028 0.509 0.000
H2 -0.677 1.337 0.000
F3 0.028 -0.244 1.128
F4 0.028 -0.244 -1.128

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.08801.35611.3561
H21.08802.06652.0665
F31.35612.06652.2558
F41.35612.06652.2558

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 115.009 H2 C1 F4 115.009
F3 C1 F4 112.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.339      
2 H 0.213      
3 F -0.276      
4 F -0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.760 1.283 0.000 1.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.975 -0.892 0.000
y -0.892 -14.269 0.000
z 0.000 0.000 -17.422
Traceless
 xyz
x 0.871 -0.892 0.000
y -0.892 1.929 0.000
z 0.000 0.000 -2.800
Polar
3z2-r2-5.600
x2-y2-0.706
xy-0.892
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.950 -0.281 0.000
y -0.281 1.465 0.000
z 0.000 0.000 1.795


<r2> (average value of r2) Å2
<r2> 37.506
(<r2>)1/2 6.124