return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A
Energy calculated at B97D3/STO-3G
 hartrees
Energy at 0K-234.883107
Energy at 298.15K 
HF Energy-234.883107
Nuclear repulsion energy67.187599
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 B97D3/STO-3G
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' 3060 3060 27.64 39.15 0.35 0.52
2 A' 1171 1171 21.41 5.50 0.12 0.22
3 A' 942 942 14.94 4.16 0.40 0.58
4 A' 494 494 2.05 1.37 0.75 0.86
5 A" 1411 1411 53.56 2.50 0.75 0.86
6 A" 1211 1211 32.12 6.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4144.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4144.3 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 B97D3/STO-3G
ABC
2.09054 0.33336 0.29241

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.033 0.529 0.000
H2 -0.792 1.310 0.000
F3 0.033 -0.249 1.148
F4 0.033 -0.249 -1.148

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.13601.38721.3872
H21.13602.10492.1049
F31.38722.10492.2960
F41.38722.10492.2960

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 112.695 H2 C1 F4 112.695
F3 C1 F4 111.702
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.062      
2 H 0.052      
3 F -0.057      
4 F -0.057      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.546 0.190 0.000 0.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.376 -0.570 0.000
y -0.570 -13.516 0.000
z 0.000 0.000 -14.360
Traceless
 xyz
x 0.562 -0.570 0.000
y -0.570 0.352 0.000
z 0.000 0.000 -0.914
Polar
3z2-r2-1.828
x2-y20.140
xy-0.570
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.546 -0.217 0.000
y -0.217 1.012 0.000
z 0.000 0.000 1.495


<r2> (average value of r2) Å2
<r2> 37.482
(<r2>)1/2 6.122