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

using model chemistry: B3PW91/6-31+G**

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 B3PW91/6-31+G**
 hartrees
Energy at 0K-400.052743
Energy at 298.15K-400.052469
HF Energy-400.052743
Nuclear repulsion energy21.136592
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 B3PW91/6-31+G**
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 87 83 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 43.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 41.7 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 B3PW91/6-31+G**
B
0.10815

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 1.803
Mg2 0.000 0.000 -1.803

Atom - Atom Distances (Å)
  Mg1 Mg2
Mg13.6052
Mg23.6052

picture of Magnesium diatomic state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** 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 -24.774 0.000 0.000
y 0.000 -24.774 0.000
z 0.000 0.000 -27.051
Traceless
 xyz
x 1.138 0.000 0.000
y 0.000 1.138 0.000
z 0.000 0.000 -2.276
Polar
3z2-r2-4.553
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 18.335 0.000 0.000
y 0.000 18.335 0.000
z 0.000 0.000 36.637


<r2> (average value of r2) Å2
<r2> 93.932
(<r2>)1/2 9.692