return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-139.724518
Energy at 298.15K-139.727542
HF Energy-139.724518
Nuclear repulsion energy37.366664
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 B3PW91/6-311G*
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 3036 2922 32.05      
2 A1 1510 1454 3.86      
3 A1 1082 1041 104.62      
4 E 3122 3005 51.10      
4 E 3122 3005 51.09      
5 E 1507 1451 4.05      
5 E 1507 1451 4.05      
6 E 1205 1160 0.61      
6 E 1205 1160 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 8646.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 8324.2 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 B3PW91/6-311G*
ABC
5.22776 0.85907 0.85907

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

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 0.750
H3 0.000 1.033 -0.989
H4 0.894 -0.516 -0.989
H5 -0.894 -0.516 -0.989

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38051.09311.09311.0931
F21.38052.02222.02222.0222
H31.09312.02221.78871.7887
H41.09312.02221.78871.7887
H51.09312.02221.78871.7887

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 109.127 F2 C1 H4 109.127
F2 C1 H5 109.127 H3 C1 H4 109.813
H3 C1 H5 109.813 H4 C1 H5 109.813
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.336      
2 F -0.277      
3 H 0.204      
4 H 0.204      
5 H 0.204      


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 -1.879 1.879
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.715 0.000 0.000
y 0.000 -11.715 0.000
z 0.000 0.000 -12.236
Traceless
 xyz
x 0.261 0.000 0.000
y 0.000 0.261 0.000
z 0.000 0.000 -0.521
Polar
3z2-r2-1.043
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 1.908 0.000 0.000
y 0.000 1.908 0.000
z 0.000 0.000 1.929


<r2> (average value of r2) Å2
<r2> 21.005
(<r2>)1/2 4.583