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: QCISD(T)=FULL/aug-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 QCISD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-139.605105
Energy at 298.15K-139.608132
HF Energy-139.097375
Nuclear repulsion energy37.346786
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 QCISD(T)=FULL/aug-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 3063 3063        
2 A1 1503 1503        
3 A1 1072 1072        
4 E 3133 3133        
4 E 3133 3133        
5 E 1527 1527        
5 E 1527 1527        
6 E 1209 1209        
6 E 1209 1209        

Unscaled Zero Point Vibrational Energy (zpe) 8687.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8687.6 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 QCISD(T)=FULL/aug-cc-pVTZ
ABC
5.25018 0.85651 0.85651

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.635
F2 0.000 0.000 0.751
H3 0.000 1.031 -0.984
H4 0.892 -0.515 -0.984
H5 -0.892 -0.515 -0.984

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.38571.08801.08801.0880
F21.38572.01762.01762.0176
H31.08802.01761.78491.7849
H41.08802.01761.78491.7849
H51.08802.01761.78491.7849

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 108.708 F2 C1 H4 108.708
F2 C1 H5 108.708 H3 C1 H4 110.224
H3 C1 H5 110.224 H4 C1 H5 110.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability