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All results from a given calculation for CH2F (fluoromethyl radical)

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-138.153945
Energy at 298.15K-138.154916
HF Energy-138.153945
Nuclear repulsion energy31.336399
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 PBEPBE/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' 3085 2942 6.15      
2 A' 1500 1430 3.53      
3 A' 1164 1110 47.12      
4 A' 278 265 91.14      
5 A" 3237 3087 27.11      
6 A" 1137 1085 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 5200.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 4958.9 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 PBEPBE/3-21G*
ABC
8.91686 0.96784 0.87520

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.015 0.672 0.000
F2 0.015 -0.707 0.000
H3 -0.109 1.168 0.962
H4 -0.109 1.168 -0.962

Atom - Atom Distances (Å)
  C1 F2 H3 H4
C11.37901.08971.0897
F21.37902.11112.1111
H31.08972.11111.9249
H41.08972.11111.9249

picture of fluoromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 H3 117.065 F2 C1 H4 117.065
H3 C1 H4 124.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.165      
2 F -0.220      
3 H 0.192      
4 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.258 1.174 0.000 1.202
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.194 -0.272 0.000
y -0.272 -10.989 0.000
z 0.000 0.000 -10.358
Traceless
 xyz
x -1.520 -0.272 0.000
y -0.272 0.287 0.000
z 0.000 0.000 1.234
Polar
3z2-r22.468
x2-y2-1.205
xy-0.272
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.705 -0.064 0.000
y -0.064 1.897 0.000
z 0.000 0.000 1.606


<r2> (average value of r2) Å2
<r2> 18.798
(<r2>)1/2 4.336