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

using model chemistry: B3LYP/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 B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-1120.640156
Energy at 298.15K-1120.640209
Nuclear repulsion energy134.339045
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 B3LYP/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 321 310 0.00      
2 Σu 619 598 141.95      
3 Πu 122 118 52.44      
3 Πu 122 118 52.44      

Unscaled Zero Point Vibrational Energy (zpe) 592.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 571.8 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 B3LYP/6-31G(2df,p)
B
0.05089

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

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 2.176
Cl3 0.000 0.000 -2.176

Atom - Atom Distances (Å)
  Mg1 Cl2 Cl3
Mg12.17642.1764
Cl22.17644.3527
Cl32.17644.3527

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 B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.742      
2 Cl -0.371      
3 Cl -0.371      


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 -33.332 0.000 0.000
y 0.000 -33.332 0.000
z 0.000 0.000 -48.859
Traceless
 xyz
x 7.764 0.000 0.000
y 0.000 7.764 0.000
z 0.000 0.000 -15.528
Polar
3z2-r2-31.055
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 5.392 0.000 0.000
y 0.000 5.392 0.000
z 0.000 0.000 8.393


<r2> (average value of r2) Å2
<r2> 185.094
(<r2>)1/2 13.605