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All results from a given calculation for MgO (magnesium oxide)

using model chemistry: MP2=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ+
Energy calculated at MP2=FULL/cc-pVQZ
 hartrees
Energy at 0K-274.795812
Energy at 298.15K-274.796015
Nuclear repulsion energy29.267730
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=FULL/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 1019 975 969.94      

Unscaled Zero Point Vibrational Energy (zpe) 509.6 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 487.7 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=FULL/cc-pVQZ
B
0.58311

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 0.694
O2 0.000 0.000 -1.041

Atom - Atom Distances (Å)
  Mg1 O2
Mg11.7357
O21.7357

picture of magnesium oxide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability