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

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-137.788795
Energy at 298.15K-137.791801
HF Energy-137.788795
Nuclear repulsion energy36.720637
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 mPW1PW91/STO-3G
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 3251 2857 12.99 39.69 0.03 0.05
2 A1 1646 1447 1.32 5.24 0.73 0.84
3 A1 1221 1073 12.23 2.87 0.48 0.65
4 E 3404 2992 10.33 26.19 0.75 0.86
4 E 3404 2992 10.33 26.19 0.75 0.86
5 E 1674 1471 2.56 15.54 0.75 0.86
5 E 1674 1471 2.56 15.54 0.75 0.86
6 E 1233 1084 0.89 3.66 0.75 0.86
6 E 1233 1084 0.89 3.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9370.6 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 8235.8 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 mPW1PW91/STO-3G
ABC
5.18495 0.82513 0.82513

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.633
F2 0.000 0.000 0.767
H3 0.000 1.037 -1.035
H4 0.898 -0.518 -1.035
H5 -0.898 -0.518 -1.035

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.40071.11211.11211.1121
F21.40072.07942.07942.0794
H31.11212.07941.79611.7961
H41.11212.07941.79611.7961
H51.11212.07941.79611.7961

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 111.175 F2 C1 H4 111.175
F2 C1 H5 111.175 H3 C1 H4 107.715
H3 C1 H5 107.715 H4 C1 H5 107.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 F -0.104      
3 H 0.076      
4 H 0.076      
5 H 0.076      


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