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

using model chemistry: QCISD/6-31G

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
 hartrees
Energy at 0K-139.226237
Energy at 298.15K-139.229237
HF Energy-138.992495
Nuclear repulsion energy36.094793
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
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 3041 2930 17.90      
2 A1 1510 1455 5.18      
3 A1 990 954 53.07      
4 E 3133 3019 38.98      
4 E 3133 3019 38.98      
5 E 1542 1486 2.42      
5 E 1542 1486 2.42      
6 E 1159 1116 0.51      
6 E 1159 1116 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 8604.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 8290.8 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
ABC
5.12688 0.78875 0.78875

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.669
F2 0.000 0.000 0.784
H3 0.000 1.043 -1.013
H4 0.903 -0.521 -1.013
H5 -0.903 -0.521 -1.013

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.45321.09801.09801.0980
F21.45322.07762.07762.0776
H31.09802.07761.80631.8063
H41.09802.07761.80631.8063
H51.09802.07761.80631.8063

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 108.245 F2 C1 H4 108.245
F2 C1 H5 108.245 H3 C1 H4 110.669
H3 C1 H5 110.669 H4 C1 H5 110.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability