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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-236.926407
Energy at 298.15K-236.927619
HF Energy-236.926407
Nuclear repulsion energy68.486408
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 B3PW91/3-21G
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' 3142 3021 37.44      
2 A' 1149 1105 66.64      
3 A' 939 903 11.18      
4 A' 514 494 5.94      
5 A" 1393 1338 66.95      
6 A" 1225 1177 116.64      

Unscaled Zero Point Vibrational Energy (zpe) 4180.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4018.6 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 B3PW91/3-21G
ABC
2.21147 0.34405 0.30149

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.028 0.510 0.000
H2 -0.679 1.338 0.000
F3 0.028 -0.244 1.131
F4 0.028 -0.244 -1.131

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.08881.35991.3599
H21.08882.06962.0696
F31.35992.06962.2630
F41.35992.06962.2630

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 114.938 H2 C1 F4 114.938
F3 C1 F4 112.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.329      
2 H 0.211      
3 F -0.270      
4 F -0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.768 1.260 0.000 1.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.955 -0.898 0.000
y -0.898 -14.257 0.000
z 0.000 0.000 -17.369
Traceless
 xyz
x 0.858 -0.898 0.000
y -0.898 1.905 0.000
z 0.000 0.000 -2.763
Polar
3z2-r2-5.526
x2-y2-0.698
xy-0.898
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.957 -0.284 0.000
y -0.284 1.480 0.000
z 0.000 0.000 1.821


<r2> (average value of r2) Å2
<r2> 37.647
(<r2>)1/2 6.136