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

using model chemistry: QCISD/3-21G*

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 QCISD/3-21G*
 hartrees
Energy at 0K-89.115101
Energy at 298.15K-89.114185
HF Energy-88.909725
Nuclear repulsion energy11.986427
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/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 1567 1506 326.72      

Unscaled Zero Point Vibrational Energy (zpe) 783.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 753.0 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/3-21G*
B
1.46530

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.942
O2 0.000 0.000 0.471

Atom - Atom Distances (Å)
  Be1 O2
Be11.4127
O21.4127

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