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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-139.574269
Energy at 298.15K-139.577278
HF Energy-139.574269
Nuclear repulsion energy37.071319
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 PBEPBE/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 2957 2915 35.48 119.17 0.03 0.06
2 A1 1485 1464 7.98 7.64 0.71 0.83
3 A1 1073 1057 85.30 4.06 0.59 0.75
4 E 3032 2988 53.48 59.20 0.75 0.86
4 E 3032 2988 53.48 59.20 0.75 0.86
5 E 1474 1453 1.55 19.57 0.75 0.86
5 E 1474 1453 1.55 19.57 0.75 0.86
6 E 1168 1151 0.19 7.71 0.75 0.86
6 E 1168 1151 0.19 7.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8431.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 8310.9 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 PBEPBE/6-31G*
ABC
5.15636 0.84566 0.84566

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.631
F2 0.000 0.000 0.756
H3 0.000 1.040 -1.007
H4 0.901 -0.520 -1.007
H5 -0.901 -0.520 -1.007

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38741.10581.10581.1058
F21.38742.04722.04722.0472
H31.10582.04721.80111.8011
H41.10582.04721.80111.8011
H51.10582.04721.80111.8011

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 109.885 F2 C1 H4 109.885
F2 C1 H5 109.885 H3 C1 H4 109.054
H3 C1 H5 109.054 H4 C1 H5 109.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 F -0.277      
3 H 0.152      
4 H 0.152      
5 H 0.152      


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 -1.590 1.590
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.744 0.000 0.000
y 0.000 -11.744 0.000
z 0.000 0.000 -11.980
Traceless
 xyz
x 0.118 0.000 0.000
y 0.000 0.118 0.000
z 0.000 0.000 -0.236
Polar
3z2-r2-0.472
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 1.960 0.000 0.000
y 0.000 1.960 0.000
z 0.000 0.000 1.966


<r2> (average value of r2) Å2
<r2> 21.209
(<r2>)1/2 4.605