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=FULL/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-139.572017
Energy at 298.15K-139.575049
HF Energy-139.102354
Nuclear repulsion energy37.458343
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/Def2TZVPP
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 3094 28.48 143.26 0.03 0.06
2 A1 1516 1516 2.47 1.26 0.56 0.72
3 A1 1095 1095 101.17 5.26 0.49 0.66
4 E 3194 3194 26.79 45.10 0.75 0.86
4 E 3194 3194 26.79 45.10 0.75 0.86
5 E 1528 1528 3.53 7.90 0.75 0.86
5 E 1528 1528 3.53 7.90 0.75 0.86
6 E 1221 1221 1.13 3.70 0.75 0.86
6 E 1221 1221 1.13 3.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8794.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8794.3 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/Def2TZVPP
ABC
5.30348 0.86074 0.86074

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.632
F2 0.000 0.000 0.749
H3 0.000 1.025 -0.984
H4 0.888 -0.513 -0.984
H5 -0.888 -0.513 -0.984

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38161.08401.08401.0840
F21.38162.01402.01402.0140
H31.08402.01401.77591.7759
H41.08402.01401.77591.7759
H51.08402.01401.77591.7759

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 108.944 F2 C1 H4 108.944
F2 C1 H5 108.944 H3 C1 H4 109.993
H3 C1 H5 109.993 H4 C1 H5 109.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability