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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-138.491729
Energy at 298.15K-138.494761
HF Energy-138.280991
Nuclear repulsion energy36.514492
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 MP2/3-21G
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 3094 2954 18.63 95.87 0.04 0.08
2 A1 1590 1518 8.37 7.35 0.74 0.85
3 A1 1067 1018 40.59 5.96 0.46 0.63
4 E 3162 3018 47.02 49.06 0.75 0.86
4 E 3162 3018 47.02 49.06 0.75 0.86
5 E 1610 1537 1.19 22.87 0.75 0.86
5 E 1610 1537 1.19 22.87 0.75 0.86
6 E 1214 1159 0.32 9.12 0.75 0.86
6 E 1214 1159 0.32 9.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8862.2 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 8458.9 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 MP2/3-21G
ABC
5.27613 0.80766 0.80766

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.652
F2 0.000 0.000 0.776
H3 0.000 1.028 -1.023
H4 0.890 -0.514 -1.023
H5 -0.890 -0.514 -1.023

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.42801.09291.09291.0929
F21.42802.07192.07192.0719
H31.09292.07191.78051.7805
H41.09292.07191.78051.7805
H51.09292.07191.78051.7805

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 109.843 F2 C1 H4 109.843
F2 C1 H5 109.843 H3 C1 H4 109.097
H3 C1 H5 109.097 H4 C1 H5 109.097
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability