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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-139.335856
Energy at 298.15K-139.338888
HF Energy-139.033782
Nuclear repulsion energy37.174917
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 MP2/6-31G*
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 3115 2938 25.98 106.09 0.04 0.08
2 A1 1556 1468 8.52 5.82 0.73 0.85
3 A1 1106 1043 85.82 5.43 0.49 0.66
4 E 3215 3032 39.77 50.40 0.75 0.86
4 E 3215 3032 39.77 50.40 0.75 0.86
5 E 1566 1477 1.45 16.86 0.75 0.86
5 E 1566 1477 1.45 16.86 0.75 0.86
6 E 1224 1155 0.84 7.80 0.75 0.86
6 E 1224 1155 0.84 7.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8894.4 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 8387.4 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 MP2/6-31G*
ABC
5.23732 0.84726 0.84726

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.636
F2 0.000 0.000 0.756
H3 0.000 1.032 -0.994
H4 0.894 -0.516 -0.994
H5 -0.894 -0.516 -0.994

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.39201.09201.09201.0920
F21.39202.03112.03112.0311
H31.09202.03111.78711.7871
H41.09202.03111.78711.7871
H51.09202.03111.78711.7871

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 109.112 F2 C1 H4 109.112
F2 C1 H5 109.112 H3 C1 H4 109.828
H3 C1 H5 109.828 H4 C1 H5 109.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability