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 CH3F (Methyl fluoride)

using model chemistry: TPSSh/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/STO-3G
 hartrees
Energy at 0K-137.827752
Energy at 298.15K-137.830749
HF Energy-137.827752
Nuclear repulsion energy36.509258
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 TPSSh/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3197 3197 16.33 43.17 0.02 0.05
2 A1 1633 1633 3.17 5.69 0.74 0.85
3 A1 1185 1185 12.34 2.63 0.48 0.65
4 E 3341 3341 15.52 28.21 0.75 0.86
4 E 3341 3341 15.52 28.21 0.75 0.86
5 E 1666 1666 1.24 16.09 0.75 0.86
5 E 1666 1666 1.24 16.09 0.75 0.86
6 E 1216 1216 1.15 4.06 0.75 0.86
6 E 1216 1216 1.15 4.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9230.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9230.1 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 TPSSh/STO-3G
ABC
5.13648 0.81513 0.81513

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.638
F2 0.000 0.000 0.772
H3 0.000 1.042 -1.041
H4 0.902 -0.521 -1.041
H5 -0.902 -0.521 -1.041

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.40981.11701.11701.1170
F21.40982.09082.09082.0908
H31.11702.09081.80461.8046
H41.11702.09081.80461.8046
H51.11702.09081.80461.8046

picture of Methyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 H3 111.141 F2 C1 H4 111.141
F2 C1 H5 111.141 H3 C1 H4 107.751
H3 C1 H5 107.751 H4 C1 H5 107.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 F -0.098      
3 H 0.065      
4 H 0.065      
5 H 0.065      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.881 0.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.875 0.000 0.000
y 0.000 0.875 0.000
z 0.000 0.000 1.167


<r2> (average value of r2) Å2
<r2> 21.151
(<r2>)1/2 4.599