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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G*
 hartrees
Energy at 0K-138.826613
Energy at 298.15K-138.829639
HF Energy-138.826613
Nuclear repulsion energy36.765943
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 PBE1PBE/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 3050 2927 21.92 106.54 0.03 0.06
2 A1 1560 1497 3.56 8.11 0.73 0.84
3 A1 1088 1044 49.20 4.38 0.53 0.69
4 E 3116 2991 49.09 54.65 0.75 0.86
4 E 3116 2991 49.09 54.65 0.75 0.86
5 E 1568 1505 3.34 23.78 0.75 0.86
5 E 1568 1505 3.34 23.78 0.75 0.86
6 E 1191 1143 0.03 8.22 0.75 0.86
6 E 1191 1143 0.03 8.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8723.8 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 8373.1 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 PBE1PBE/3-21G*
ABC
5.27932 0.82263 0.82263

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.641
F2 0.000 0.000 0.769
H3 0.000 1.028 -1.023
H4 0.890 -0.514 -1.023
H5 -0.890 -0.514 -1.023

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.41011.09611.09611.0961
F21.41012.06512.06512.0651
H31.09612.06511.78001.7800
H41.09612.06511.78001.7800
H51.09612.06511.78001.7800

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 110.353 F2 C1 H4 110.353
F2 C1 H5 110.353 H3 C1 H4 108.575
H3 C1 H5 108.575 H4 C1 H5 108.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.307      
2 F -0.311      
3 H 0.206      
4 H 0.206      
5 H 0.206      


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 -1.929 1.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.644 0.000 0.000
y 0.000 -11.644 0.000
z 0.000 0.000 -11.990
Traceless
 xyz
x 0.173 0.000 0.000
y 0.000 0.173 0.000
z 0.000 0.000 -0.347
Polar
3z2-r2-0.693
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 1.655 0.000 0.000
y 0.000 1.655 0.000
z 0.000 0.000 1.754


<r2> (average value of r2) Å2
<r2> 21.436
(<r2>)1/2 4.630