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All results from a given calculation for BeH2 (beryllium dihydride)

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-15.871820
Energy at 298.15K-15.872231
HF Energy-15.871820
Nuclear repulsion energy3.367972
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2025 1941 0.00      
2 Σu 2246 2153 244.62      
3 Πu 741 710 317.81      
3 Πu 741 710 317.81      

Unscaled Zero Point Vibrational Energy (zpe) 2876.0 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 2756.6 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 PBE1PBE/6-311G*
B
4.68898

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
H2 0.000 0.000 1.336
H3 0.000 0.000 -1.336

Atom - Atom Distances (Å)
  Be1 H2 H3
Be11.33551.3355
H21.33552.6710
H31.33552.6710

picture of beryllium dihydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Be1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.118      
2 H -0.059      
3 H -0.059      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.703 0.000 0.000
y 0.000 -6.703 0.000
z 0.000 0.000 -11.769
Traceless
 xyz
x 2.533 0.000 0.000
y 0.000 2.533 0.000
z 0.000 0.000 -5.066
Polar
3z2-r2-10.133
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 2.482 0.000 0.000
y 0.000 2.482 0.000
z 0.000 0.000 2.867


<r2> (average value of r2) Å2
<r2> 8.809
(<r2>)1/2 2.968