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

using model chemistry: PBE1PBE/6-31G(2df,p)

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 PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-89.787520
Energy at 298.15K-89.786604
HF Energy-89.787520
Nuclear repulsion energy12.807442
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 PBE1PBE/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 Σ 1566 1498 7.04      

Unscaled Zero Point Vibrational Energy (zpe) 782.8 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 749.2 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 PBE1PBE/6-31G(2df,p)
B
1.67290

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.881
O2 0.000 0.000 0.441

Atom - Atom Distances (Å)
  Be1 O2
Be11.3222
O21.3222

picture of beryllium oxide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be -0.008      
2 O 0.008      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -5.856 5.856
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.217 0.000 0.000
y 0.000 -10.217 0.000
z 0.000 0.000 -3.578
Traceless
 xyz
x -3.320 0.000 0.000
y 0.000 -3.320 0.000
z 0.000 0.000 6.640
Polar
3z2-r213.279
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.561 0.000 0.000
y 0.000 3.561 0.000
z 0.000 0.000 3.450


<r2> (average value of r2) Å2
<r2> 9.661
(<r2>)1/2 3.108