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All results from a given calculation for CaF2 (Calcium difluoride)

using model chemistry: CISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Σg
Energy calculated at CISD/6-31G(2df,p)
 hartrees
Energy at 0K-876.262670
Energy at 298.15K-876.263268
Nuclear repulsion energy105.186507
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 CISD/6-31G(2df,p)
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 533 533 7.55      
2 A1 83 83 103.70      
3 B2 683 683 206.89      

Unscaled Zero Point Vibrational Energy (zpe) 649.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 649.4 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 CISD/6-31G(2df,p)
ABC
8.12893 0.11192 0.11040

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.155
F2 0.000 1.991 -0.172
F3 0.000 -1.991 -0.172

Atom - Atom Distances (Å)
  Ca1 F2 F3
Ca12.01762.0176
F22.01763.9820
F32.01763.9820

picture of Calcium difluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Ca1 F3 161.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability