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 CH2F (fluoromethyl radical)

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-139.075321
Energy at 298.15K-139.076583
HF Energy-139.075321
Nuclear repulsion energy32.256106
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/6-31G(2df,p)
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' 3121 3012 12.45      
2 A' 1487 1435 6.80      
3 A' 1219 1176 92.90      
4 A' 580 560 37.25      
5 A" 3272 3157 17.20      
6 A" 1182 1140 8.61      

Unscaled Zero Point Vibrational Energy (zpe) 5430.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 5240.2 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/6-31G(2df,p)
ABC
8.80011 1.03892 0.93771

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 0.651 0.000
F2 0.027 -0.681 0.000
H3 -0.205 1.112 0.954
H4 -0.205 1.112 -0.954

Atom - Atom Distances (Å)
  C1 F2 H3 H4
C11.33131.08461.0846
F21.33132.04392.0439
H31.08462.04391.9075
H41.08462.04391.9075

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 115.183 F2 C1 H4 115.183
H3 C1 H4 123.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.183      
2 F -0.065      
3 H 0.124      
4 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.367 1.083 0.000 1.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.957 -0.407 0.000
y -0.407 -11.223 0.000
z 0.000 0.000 -10.385
Traceless
 xyz
x -1.153 -0.407 0.000
y -0.407 -0.052 0.000
z 0.000 0.000 1.205
Polar
3z2-r22.410
x2-y2-0.734
xy-0.407
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.312 -0.100 0.000
y -0.100 2.069 0.000
z 0.000 0.000 2.002


<r2> (average value of r2) Å2
<r2> 18.086
(<r2>)1/2 4.253