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/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-139.744160
Energy at 298.15K-139.747187
HF Energy-139.744160
Nuclear repulsion energy37.379934
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/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 A1 3013 2908 31.13 119.40 0.03 0.07
2 A1 1513 1460 5.47 3.90 0.65 0.79
3 A1 1091 1053 88.14 3.82 0.49 0.66
4 E 3092 2983 51.13 55.78 0.75 0.86
4 E 3092 2983 51.14 55.78 0.75 0.86
5 E 1510 1457 1.13 13.71 0.75 0.86
5 E 1510 1457 1.13 13.71 0.75 0.86
6 E 1208 1165 1.17 5.38 0.75 0.86
6 E 1208 1165 1.17 5.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8617.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8316.0 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/6-31G(2df,p)
ABC
5.22602 0.86026 0.86026

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.628
F2 0.000 0.000 0.750
H3 0.000 1.033 -0.994
H4 0.895 -0.516 -0.994
H5 -0.895 -0.516 -0.994

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.37721.09581.09581.0958
F21.37722.02632.02632.0263
H31.09582.02631.78901.7890
H41.09582.02631.78901.7890
H51.09582.02631.78901.7890

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 109.513 F2 C1 H4 109.513
F2 C1 H5 109.513 H3 C1 H4 109.429
H3 C1 H5 109.429 H4 C1 H5 109.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 F -0.170      
3 H 0.136      
4 H 0.136      
5 H 0.136      


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 -1.594 1.594
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 2.098 0.000 0.000
y 0.000 2.098 0.000
z 0.000 0.000 2.115


<r2> (average value of r2) Å2
<r2> 20.935
(<r2>)1/2 4.575