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All results from a given calculation for MgCl2 (Magnesium dichloride)

using model chemistry: QCISD/6-31G

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 QCISD/6-31G
 hartrees
Energy at 0K-1118.795261
Energy at 298.15K-1118.795164
HF Energy-1118.685968
Nuclear repulsion energy128.980470
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 QCISD/6-31G
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 290 280 0.00      
2 Σu 578 557 98.73      
3 Πu 98 94 74.34      
3 Πu 98 94 74.34      

Unscaled Zero Point Vibrational Energy (zpe) 532.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 512.6 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 QCISD/6-31G
B
0.04691

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 0.000
Cl2 0.000 0.000 2.267
Cl3 0.000 0.000 -2.267

Atom - Atom Distances (Å)
  Mg1 Cl2 Cl3
Mg12.26682.2668
Cl22.26684.5336
Cl32.26684.5336

picture of Magnesium dichloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 Mg1 Cl3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at QCISD/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 1.104      
2 Cl -0.552      
3 Cl -0.552      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000