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

using model chemistry: QCISD/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 QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-139.460977
Energy at 298.15K-139.464015
HF Energy-139.045917
Nuclear repulsion energy37.508496
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 QCISD/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 3077 2915 24.72      
2 A1 1540 1459 4.98      
3 A1 1124 1065 86.02      
4 E 3162 2996 37.10      
4 E 3162 2996 37.10      
5 E 1532 1452 1.70      
5 E 1532 1452 1.70      
6 E 1233 1168 1.45      
6 E 1233 1168 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 8798.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 8335.5 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 QCISD/6-31G(2df,p)
ABC
5.25631 0.86647 0.86647

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.625
F2 0.000 0.000 0.747
H3 0.000 1.030 -0.990
H4 0.892 -0.515 -0.990
H5 -0.892 -0.515 -0.990

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.37201.09281.09281.0928
F21.37202.01962.01962.0196
H31.09282.01961.78391.7839
H41.09282.01961.78391.7839
H51.09282.01961.78391.7839

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 109.525 F2 C1 H4 109.525
F2 C1 H5 109.525 H3 C1 H4 109.418
H3 C1 H5 109.418 H4 C1 H5 109.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability