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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-139.598550
Energy at 298.15K-139.601579
HF Energy-139.500389
Nuclear repulsion energy37.271324
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 B2PLYP/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 3081 2925 29.68 112.20 0.04 0.07
2 A1 1548 1469 9.41 6.26 0.72 0.84
3 A1 1099 1043 89.97 4.99 0.53 0.69
4 E 3165 3004 47.92 54.39 0.75 0.86
4 E 3165 3004 47.93 54.39 0.75 0.86
5 E 1548 1469 1.35 17.59 0.75 0.86
5 E 1548 1469 1.35 17.59 0.75 0.86
6 E 1218 1156 0.90 7.60 0.75 0.86
6 E 1218 1156 0.90 7.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8794.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8347.4 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 B2PLYP/6-31G*
ABC
5.24431 0.85286 0.85286

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

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 0.753
H3 0.000 1.031 -0.995
H4 0.893 -0.516 -0.995
H5 -0.893 -0.516 -0.995

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38531.09301.09301.0930
F21.38532.02942.02942.0294
H31.09302.02941.78591.7859
H41.09302.02941.78591.7859
H51.09302.02941.78591.7859

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 109.378 F2 C1 H4 109.378
F2 C1 H5 109.378 H3 C1 H4 109.564
H3 C1 H5 109.564 H4 C1 H5 109.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.115      
2 F -0.328      
3 H 0.148      
4 H 0.148      
5 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.788 1.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.732 0.000 0.000
y 0.000 -11.732 0.000
z 0.000 0.000 -12.052
Traceless
 xyz
x 0.160 0.000 0.000
y 0.000 0.160 0.000
z 0.000 0.000 -0.320
Polar
3z2-r2-0.640
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.881 0.000 0.000
y 0.000 1.881 0.000
z 0.000 0.000 1.864


<r2> (average value of r2) Å2
<r2> 21.053
(<r2>)1/2 4.588