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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-237.008986
Energy at 298.15K-237.010191
HF Energy-237.008986
Nuclear repulsion energy68.373351
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 B3LYP/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' 3129 3010 38.55      
2 A' 1139 1095 65.22      
3 A' 936 901 10.57      
4 A' 512 492 5.71      
5 A" 1388 1335 61.63      
6 A" 1213 1167 119.10      

Unscaled Zero Point Vibrational Energy (zpe) 4158.2 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 4000.2 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 B3LYP/3-21G*
ABC
2.20337 0.34294 0.30050

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.028 0.511 0.000
H2 -0.680 1.338 0.000
F3 0.028 -0.245 1.133
F4 0.028 -0.245 -1.133

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.08881.36241.3624
H21.08882.07182.0718
F31.36242.07182.2666
F41.36242.07182.2666

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 112.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.336      
2 H 0.192      
3 F -0.264      
4 F -0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.757 1.213 0.000 1.430
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.961 -0.863 0.000
y -0.863 -14.302 0.000
z 0.000 0.000 -17.309
Traceless
 xyz
x 0.845 -0.863 0.000
y -0.863 1.833 0.000
z 0.000 0.000 -2.677
Polar
3z2-r2-5.354
x2-y2-0.659
xy-0.863
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.954 -0.290 0.000
y -0.290 1.488 0.000
z 0.000 0.000 1.839


<r2> (average value of r2) Å2
<r2> 37.735
(<r2>)1/2 6.143