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

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-138.931745
Energy at 298.15K-138.934749
HF Energy-138.931745
Nuclear repulsion energy36.305996
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 BLYP/3-21G*
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 2936 2917 31.18 108.59 0.03 0.06
2 A1 1530 1520 7.27 9.63 0.71 0.83
3 A1 1010 1004 46.12 3.65 0.56 0.72
4 E 2982 2963 68.03 58.20 0.75 0.86
4 E 2982 2963 68.03 58.20 0.75 0.86
5 E 1524 1515 1.51 25.13 0.75 0.86
5 E 1524 1515 1.51 25.13 0.75 0.86
6 E 1156 1148 0.03 9.44 0.75 0.86
6 E 1156 1148 0.03 9.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8400.5 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 8345.9 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 BLYP/3-21G*
ABC
5.20851 0.79969 0.79969

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.650
F2 0.000 0.000 0.780
H3 0.000 1.035 -1.039
H4 0.896 -0.517 -1.039
H5 -0.896 -0.517 -1.039

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.43041.10541.10541.1054
F21.43042.09322.09322.0932
H31.10542.09321.79201.7920
H41.10542.09321.79201.7920
H51.10542.09321.79201.7920

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 110.613 F2 C1 H4 110.613
F2 C1 H5 110.613 H3 C1 H4 108.306
H3 C1 H5 108.306 H4 C1 H5 108.306
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.248      
2 F -0.268      
3 H 0.172      
4 H 0.172      
5 H 0.172      


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 -1.709 1.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.746 0.000 0.000
y 0.000 -11.746 0.000
z 0.000 0.000 -11.967
Traceless
 xyz
x 0.111 0.000 0.000
y 0.000 0.111 0.000
z 0.000 0.000 -0.221
Polar
3z2-r2-0.443
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 1.695 0.000 0.000
y 0.000 1.695 0.000
z 0.000 0.000 1.872


<r2> (average value of r2) Å2
<r2> 21.850
(<r2>)1/2 4.674