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 AlF3 (Aluminum trifluoride)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-538.043199
Energy at 298.15K-538.044501
HF Energy-537.637960
Nuclear repulsion energy159.354518
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 MP2/3-21G*
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' 760 723 0.00      
2 A2" 302 288 139.36      
3 E' 1072 1020 121.08      
3 E' 1072 1020 121.08      
4 E' 253 241 37.32      
4 E' 253 241 37.32      

Unscaled Zero Point Vibrational Energy (zpe) 1855.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1765.5 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 MP2/3-21G*
ABC
0.22224 0.22224 0.11112

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.000
F2 0.000 1.631 0.000
F3 1.413 -0.816 0.000
F4 -1.413 -0.816 0.000

Atom - Atom Distances (Å)
  Al1 F2 F3 F4
Al11.63151.63151.6315
F21.63152.82582.8258
F31.63152.82582.8258
F41.63152.82582.8258

picture of Aluminum trifluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Al1 F3 120.000 F2 Al1 F4 120.000
F3 Al1 F4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability