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

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

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 LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-15.764789
Energy at 298.15K-15.765176
HF Energy-15.764789
Nuclear repulsion energy3.355431
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 LSDA/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 Σg 1992 1960 0.00      
2 Σu 2220 2184 155.50      
3 Πu 712 701 245.44      
3 Πu 712 701 245.44      

Unscaled Zero Point Vibrational Energy (zpe) 2817.7 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 2772.6 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 LSDA/6-31G(2df,p)
B
4.65412

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

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 1.341
H3 0.000 0.000 -1.341

Atom - Atom Distances (Å)
  Be1 H2 H3
Be11.34051.3405
H21.34052.6810
H31.34052.6810

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 LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be -0.212      
2 H 0.106      
3 H 0.106      


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 -6.829 0.000 0.000
y 0.000 -6.829 0.000
z 0.000 0.000 -10.888
Traceless
 xyz
x 2.030 0.000 0.000
y 0.000 2.030 0.000
z 0.000 0.000 -4.059
Polar
3z2-r2-8.118
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 2.731 0.000 0.000
y 0.000 2.731 0.000
z 0.000 0.000 2.644


<r2> (average value of r2) Å2
<r2> 8.704
(<r2>)1/2 2.950