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: B1B95/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-139.744251
Energy at 298.15K-139.747278
HF Energy-139.744251
Nuclear repulsion energy37.529937
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/cc-pVTZ
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 3051 2920 31.12 150.90 0.03 0.06
2 A1 1491 1427 1.88 2.20 0.53 0.69
3 A1 1100 1053 104.95 4.06 0.61 0.76
4 E 3136 3001 36.53 52.24 0.75 0.86
4 E 3136 3001 36.53 52.24 0.75 0.86
5 E 1497 1433 3.49 8.50 0.75 0.86
5 E 1497 1433 3.49 8.50 0.75 0.86
6 E 1201 1150 0.91 3.49 0.75 0.86
6 E 1201 1150 0.91 3.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8654.7 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 8283.5 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/cc-pVTZ
ABC
5.27777 0.86643 0.86643

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.628
F2 0.000 0.000 0.747
H3 0.000 1.028 -0.985
H4 0.890 -0.514 -0.985
H5 -0.890 -0.514 -0.985

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.37451.08821.08821.0882
F21.37452.01392.01392.0139
H31.08822.01391.78021.7802
H41.08822.01391.78021.7802
H51.08822.01391.78021.7802

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 109.174 F2 C1 H4 109.174
F2 C1 H5 109.174 H3 C1 H4 109.767
H3 C1 H5 109.767 H4 C1 H5 109.767
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 F -0.239      
3 H 0.078      
4 H 0.078      
5 H 0.078      


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 -1.767 1.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.759 0.000 0.000
y 0.000 -11.759 0.000
z 0.000 0.000 -12.333
Traceless
 xyz
x 0.287 0.000 0.000
y 0.000 0.287 0.000
z 0.000 0.000 -0.574
Polar
3z2-r2-1.148
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 2.169 0.000 0.000
y 0.000 2.169 0.000
z 0.000 0.000 2.265


<r2> (average value of r2) Å2
<r2> 20.927
(<r2>)1/2 4.575