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/daug-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=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-139.576321
Energy at 298.15K-139.579350
HF Energy-139.097770
Nuclear repulsion energy37.413239
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/daug-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 3102 3102 31.56 162.94 0.02 0.04
2 A1 1513 1513 1.29 0.42 0.11 0.20
3 A1 1081 1081 106.39 6.46 0.33 0.49
4 E 3190 3190 21.49 39.40 0.75 0.86
4 E 3190 3190 21.49 39.40 0.75 0.86
5 E 1538 1538 5.17 3.82 0.75 0.86
5 E 1538 1538 5.17 3.82 0.75 0.86
6 E 1219 1219 1.29 1.49 0.75 0.86
6 E 1219 1219 1.29 1.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8794.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8794.5 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/daug-cc-pVTZ
ABC
5.28281 0.85884 0.85884

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.634
F2 0.000 0.000 0.750
H3 0.000 1.027 -0.982
H4 0.890 -0.514 -0.982
H5 -0.890 -0.514 -0.982

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38411.08471.08471.0847
F21.38412.01402.01402.0140
H31.08472.01401.77941.7794
H41.08472.01401.77941.7794
H51.08472.01401.77941.7794

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 108.723 F2 C1 H4 108.723
F2 C1 H5 108.723 H3 C1 H4 110.209
H3 C1 H5 110.209 H4 C1 H5 110.209
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability