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All results from a given calculation for CH3F (Methyl fluoride)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-139.347490
Energy at 298.15K-139.350525
HF Energy-139.033914
Nuclear repulsion energy37.242904
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 MP3/6-31G*
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 3108 2917 23.76      
2 A1 1554 1458 7.35      
3 A1 1125 1056 88.53      
4 E 3199 3002 40.52      
4 E 3199 3002 40.52      
5 E 1560 1464 1.70      
5 E 1560 1464 1.70      
6 E 1226 1151 1.04      
6 E 1226 1151 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 8877.9 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 8332.8 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 MP3/6-31G*
ABC
5.22518 0.85181 0.85181

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.634
F2 0.000 0.000 0.753
H3 0.000 1.033 -0.991
H4 0.895 -0.516 -0.991
H5 -0.895 -0.516 -0.991

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38761.09291.09291.0929
F21.38762.02752.02752.0275
H31.09292.02751.78921.7892
H41.09292.02751.78921.7892
H51.09292.02751.78921.7892

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 109.067 F2 C1 H4 109.067
F2 C1 H5 109.067 H3 C1 H4 109.872
H3 C1 H5 109.872 H4 C1 H5 109.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability