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

using model chemistry: MP2=FULL/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=FULL/3-21G
 hartrees
Energy at 0K-138.495192
Energy at 298.15K-138.498224
HF Energy-138.281006
Nuclear repulsion energy36.519911
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=FULL/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 3095 2955 18.60 95.80 0.04 0.08
2 A1 1590 1519 8.34 7.35 0.74 0.85
3 A1 1067 1019 40.57 5.95 0.46 0.63
4 E 3163 3020 46.87 49.02 0.75 0.86
4 E 3163 3020 46.87 49.02 0.75 0.86
5 E 1610 1537 1.21 22.87 0.75 0.86
5 E 1610 1537 1.21 22.87 0.75 0.86
6 E 1215 1160 0.32 9.11 0.75 0.86
6 E 1215 1160 0.32 9.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8863.6 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8463.0 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 MP2=FULL/3-21G
ABC
5.27765 0.80791 0.80791

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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
C11.42771.09271.09271.0927
F21.42772.07172.07172.0717
H31.09272.07171.78031.7803
H41.09272.07171.78031.7803
H51.09272.07171.78031.7803

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 109.847 F2 C1 H4 109.847
F2 C1 H5 109.847 H3 C1 H4 109.092
H3 C1 H5 109.092 H4 C1 H5 109.093
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability