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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-139.654899
Energy at 298.15K-139.657908
HF Energy-139.654899
Nuclear repulsion energy36.539718
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 B3PW91/6-31G
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 3068 2938 21.86      
2 A1 1516 1452 1.99      
3 A1 1026 982 62.60      
4 E 3169 3035 41.12      
4 E 3169 3035 41.11      
5 E 1533 1468 5.10      
5 E 1533 1468 5.10      
6 E 1167 1118 0.00      
6 E 1167 1118 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8673.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8306.3 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 B3PW91/6-31G
ABC
5.21584 0.81087 0.81087

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.655
F2 0.000 0.000 0.773
H3 0.000 1.034 -1.009
H4 0.895 -0.517 -1.009
H5 -0.895 -0.517 -1.009

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.42871.09261.09261.0926
F21.42872.06032.06032.0603
H31.09262.06031.79081.7908
H41.09262.06031.79081.7908
H51.09262.06031.79081.7908

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 108.872 F2 C1 H4 108.872
F2 C1 H5 108.872 H3 C1 H4 110.064
H3 C1 H5 110.064 H4 C1 H5 110.064
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.146      
2 F -0.358      
3 H 0.168      
4 H 0.168      
5 H 0.168      


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 -2.248 2.248
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.613 0.000 0.000
y 0.000 -11.613 0.000
z 0.000 0.000 -12.203
Traceless
 xyz
x 0.295 0.000 0.000
y 0.000 0.295 0.000
z 0.000 0.000 -0.590
Polar
3z2-r2-1.180
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 1.732 0.000 0.000
y 0.000 1.732 0.000
z 0.000 0.000 1.883


<r2> (average value of r2) Å2
<r2> 21.596
(<r2>)1/2 4.647