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All results from a given calculation for Mg2 (Magnesium diatomic)

using model chemistry: LSDA/3-21G*

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/3-21G*
 hartrees
Energy at 0K-396.470616
Energy at 298.15K-396.470454
HF Energy-396.470616
Nuclear repulsion energy23.914823
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/3-21G*
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 153 150 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 76.4 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 75.0 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 LSDA/3-21G*
B
0.13845

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 1.593
Mg2 0.000 0.000 -1.593

Atom - Atom Distances (Å)
  Mg1 Mg2
Mg13.1864
Mg23.1864

picture of Magnesium diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.000      
2 Mg 0.000      


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 -24.884 0.000 0.000
y 0.000 -24.884 0.000
z 0.000 0.000 -28.043
Traceless
 xyz
x 1.580 0.000 0.000
y 0.000 1.580 0.000
z 0.000 0.000 -3.159
Polar
3z2-r2-6.318
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 17.221 0.000 0.000
y 0.000 17.221 0.000
z 0.000 0.000 35.380


<r2> (average value of r2) Å2
<r2> 77.117
(<r2>)1/2 8.782