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All results from a given calculation for BeO (beryllium oxide)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-89.577525
Energy at 298.15K-89.576593
HF Energy-89.388786
Nuclear repulsion energy11.931866
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/LANL2DZ
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 1245 1199 62.41      

Unscaled Zero Point Vibrational Energy (zpe) 622.6 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 599.6 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 MP2/LANL2DZ
B
1.45199

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.946
O2 0.000 0.000 0.473

Atom - Atom Distances (Å)
  Be1 O2
Be11.4192
O21.4192

picture of beryllium oxide state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability