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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-138.923251
Energy at 298.15K-138.926279
HF Energy-138.923251
Nuclear repulsion energy36.809356
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 B1B95/3-21G
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 3062 2929 21.44 105.82 0.03 0.07
2 A1 1563 1495 3.75 8.06 0.73 0.85
3 A1 1085 1038 49.64 4.50 0.52 0.69
4 E 3128 2993 49.10 54.17 0.75 0.86
4 E 3128 2993 49.10 54.16 0.75 0.86
5 E 1570 1502 3.18 23.66 0.75 0.86
5 E 1570 1502 3.18 23.66 0.75 0.86
6 E 1192 1140 0.01 8.38 0.75 0.86
6 E 1192 1140 0.01 8.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8744.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8365.6 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 B1B95/3-21G
ABC
5.30441 0.82389 0.82389

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.642
F2 0.000 0.000 0.768
H3 0.000 1.025 -1.020
H4 0.888 -0.513 -1.020
H5 -0.888 -0.513 -1.020

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.40991.09291.09291.0929
F21.40992.06132.06132.0613
H31.09292.06131.77581.7758
H41.09292.06131.77581.7758
H51.09292.06131.77581.7758

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 110.259 F2 C1 H4 110.259
F2 C1 H5 110.259 H3 C1 H4 108.672
H3 C1 H5 108.672 H4 C1 H5 108.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.286      
2 F -0.315      
3 H 0.200      
4 H 0.200      
5 H 0.200      


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 -1.950 1.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.598 0.000 0.000
y 0.000 -11.598 0.000
z 0.000 0.000 -11.960
Traceless
 xyz
x 0.181 0.000 0.000
y 0.000 0.181 0.000
z 0.000 0.000 -0.362
Polar
3z2-r2-0.724
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 1.646 0.000 0.000
y 0.000 1.646 0.000
z 0.000 0.000 1.744


<r2> (average value of r2) Å2
<r2> 21.376
(<r2>)1/2 4.623