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

using model chemistry: ROHF/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 ROHF/3-21G
 hartrees
Energy at 0K-235.979242
Energy at 298.15K-235.980523
HF Energy-235.979242
Nuclear repulsion energy69.310459
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 ROHF/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' 3381 3066 29.10 67.29 0.23 0.38
2 A' 1229 1115 99.74 5.38 0.13 0.23
3 A' 1076 976 14.66 5.58 0.61 0.75
4 A' 549 498 12.96 1.50 0.74 0.85
5 A" 1509 1369 89.67 4.34 0.75 0.86
6 A" 1324 1201 135.84 6.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4533.9 cm-1
Scaled (by 0.907) Zero Point Vibrational Energy (zpe) 4112.3 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 ROHF/3-21G
ABC
2.23575 0.35397 0.30958

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.028 0.510 0.000
H2 -0.678 1.313 0.000
F3 0.028 -0.243 1.115
F4 0.028 -0.243 -1.115

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.06931.34601.3460
H21.06932.04072.0407
F31.34602.04072.2307
F41.34602.04072.2307

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 114.845 H2 C1 F4 114.845
F3 C1 F4 111.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.561      
2 H 0.213      
3 F -0.387      
4 F -0.387      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.643 1.883 0.000 1.990
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.749 -0.762 0.000
y -0.762 -14.119 0.000
z 0.000 0.000 -18.458
Traceless
 xyz
x 1.540 -0.762 0.000
y -0.762 2.484 0.000
z 0.000 0.000 -4.024
Polar
3z2-r2-8.049
x2-y2-0.630
xy-0.762
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 37.076
(<r2>)1/2 6.089