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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-139.451135
Energy at 298.15K-139.454175
HF Energy-139.046072
Nuclear repulsion energy37.592035
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/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 3110 2923 24.54 101.44 0.03 0.07
2 A1 1542 1449 4.35 3.32 0.70 0.82
3 A1 1132 1064 83.40 4.40 0.42 0.59
4 E 3208 3015 31.85 45.90 0.75 0.86
4 E 3208 3015 31.85 45.90 0.75 0.86
5 E 1548 1455 2.18 12.96 0.75 0.86
5 E 1548 1455 2.18 12.96 0.75 0.86
6 E 1238 1164 1.04 4.38 0.75 0.86
6 E 1238 1164 1.04 4.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8886.0 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 8352.0 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/6-31G(2df,p)
ABC
5.30146 0.86945 0.86945

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.624
F2 0.000 0.000 0.746
H3 0.000 1.026 -0.990
H4 0.888 -0.513 -0.990
H5 -0.888 -0.513 -0.990

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.36941.08921.08921.0892
F21.36942.01652.01652.0165
H31.08922.01651.77631.7763
H41.08922.01651.77631.7763
H51.08922.01651.77631.7763

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 109.686 F2 C1 H4 109.686
F2 C1 H5 109.686 H3 C1 H4 109.256
H3 C1 H5 109.256 H4 C1 H5 109.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability