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: PBEPBE/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-138.989332
Energy at 298.15K-138.990475
HF Energy-138.989332
Nuclear repulsion energy31.971016
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/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
A' 439 439 58.09      
A" 1130 1130 5.91      
A' 1151 1151 118.97      
A' 1412 1412 3.47      
A' 3062 3062 12.25      
A" 3219 3219 6.43      

Unscaled Zero Point Vibrational Energy (zpe) 5206.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5206.7 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/aug-cc-pVQZ
ABC
8.69467 1.02040 0.91869

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.022 0.658 0.000
F2 -0.022 -0.688 0.000
H3 0.167 1.120 0.967
H4 0.167 1.120 -0.967

Atom - Atom Distances (Å)
  C1 F2 H3 H4
C11.34591.08781.0878
F21.34592.05832.0583
H31.08782.05831.9335
H41.08782.05831.9335

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 115.092 F2 C1 H4 115.092
H3 C1 H4 125.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 F -0.405      
3 H 0.405      
4 H 0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.344 1.123 0.000 1.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.824 0.403 0.000
y 0.403 -11.805 0.000
z 0.000 0.000 -10.744
Traceless
 xyz
x -1.549 0.403 0.000
y 0.403 -0.021 0.000
z 0.000 0.000 1.570
Polar
3z2-r23.140
x2-y2-1.019
xy0.403
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.585 0.025 0.000
y 0.025 2.818 0.000
z 0.000 0.000 2.572


<r2> (average value of r2) Å2
<r2> 18.659
(<r2>)1/2 4.320