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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-237.250841
Energy at 298.15K-237.252084
HF Energy-237.250841
Nuclear repulsion energy68.708539
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/SDD
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' 3443 3100 20.00 71.53 0.22 0.36
2 A' 1153 1038 128.83 8.04 0.16 0.28
3 A' 1059 954 8.75 2.91 0.37 0.54
4 A' 529 476 13.91 2.00 0.70 0.82
5 A" 1412 1271 57.51 3.66 0.75 0.86
6 A" 1230 1108 256.54 7.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4412.6 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 3973.1 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/SDD
ABC
2.15390 0.35032 0.30547

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.029 0.524 0.000
H2 -0.697 1.313 0.000
F3 0.029 -0.248 1.121
F4 0.029 -0.248 -1.121

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.07161.36111.3611
H21.07162.05382.0538
F31.36112.05382.2418
F41.36112.05382.2418

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 114.663 H2 C1 F4 114.663
F3 C1 F4 110.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.447      
2 H 0.199      
3 F -0.323      
4 F -0.323      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.757 2.274 0.000 2.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.068 -0.928 0.000
y -0.928 -14.484 0.000
z 0.000 0.000 -19.664
Traceless
 xyz
x 2.006 -0.928 0.000
y -0.928 2.881 0.000
z 0.000 0.000 -4.888
Polar
3z2-r2-9.775
x2-y2-0.583
xy-0.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.991 -0.177 0.000
y -0.177 1.462 0.000
z 0.000 0.000 1.779


<r2> (average value of r2) Å2
<r2> 37.846
(<r2>)1/2 6.152