return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-139.541533
Energy at 298.15K-139.544561
HF Energy-139.097306
Nuclear repulsion energy37.309652
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/aug-cc-pVTZ
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 3087 2942 31.79 164.31 0.02 0.04
2 A1 1506 1435 1.36 0.43 0.07 0.13
3 A1 1073 1022 106.07 6.58 0.34 0.51
4 E 3190 3040 21.92 39.89 0.75 0.86
4 E 3190 3040 21.92 39.89 0.75 0.86
5 E 1528 1456 4.93 3.83 0.75 0.86
5 E 1528 1456 4.93 3.83 0.75 0.86
6 E 1210 1153 1.38 1.52 0.75 0.86
6 E 1210 1153 1.38 1.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8760.3 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 8347.7 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/aug-cc-pVTZ
ABC
5.25917 0.85380 0.85380

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

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 0.752
H3 0.000 1.030 -0.985
H4 0.892 -0.515 -0.985
H5 -0.892 -0.515 -0.985

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38841.08701.08701.0870
F21.38842.01922.01922.0192
H31.08702.01921.78341.7834
H41.08702.01921.78341.7834
H51.08702.01921.78341.7834

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 108.703 F2 C1 H4 108.703
F2 C1 H5 108.703 H3 C1 H4 110.228
H3 C1 H5 110.228 H4 C1 H5 110.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability