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

using model chemistry: HF/CEP-121G

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 HF/CEP-121G
 hartrees
Energy at 0K-16.611072
Energy at 298.15K-16.610157
HF Energy-16.611072
Nuclear repulsion energy4.854870
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 HF/CEP-121G
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 1588 1449 122.97      

Unscaled Zero Point Vibrational Energy (zpe) 793.9 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 724.4 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 HF/CEP-121G
B
1.70938

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.981
O2 0.000 0.000 0.327

Atom - Atom Distances (Å)
  Be1 O2
Be11.3080
O21.3080

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.698      
2 O -0.698      


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 -7.399 7.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.077 0.000 0.000
y 0.000 -10.077 0.000
z 0.000 0.000 -2.212
Traceless
 xyz
x -3.932 0.000 0.000
y 0.000 -3.932 0.000
z 0.000 0.000 7.865
Polar
3z2-r215.730
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 2.338 0.000 0.000
y 0.000 2.338 0.000
z 0.000 0.000 2.732


<r2> (average value of r2) Å2
<r2> 7.223
(<r2>)1/2 2.688