return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for MgS (magnesium sulfide)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-598.215562
Energy at 298.15K-598.215589
HF Energy-598.215562
Nuclear repulsion energy 
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 515 505 4.87      

Unscaled Zero Point Vibrational Energy (zpe) 257.6 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 252.6 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 B97D3/6-31G*
B
0.25927

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.245
S2 0.000 0.000 0.934

Atom - Atom Distances (Å)
  Mg1 S2
Mg12.1782
S22.1782

picture of magnesium sulfide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.348      
2 S -0.348      


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 -6.970 6.970
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.800 0.000 0.000
y 0.000 -24.800 0.000
z 0.000 0.000 -14.833
Traceless
 xyz
x -4.983 0.000 0.000
y 0.000 -4.983 0.000
z 0.000 0.000 9.966
Polar
3z2-r219.933
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 8.621 0.000 0.000
y 0.000 8.621 0.000
z 0.000 0.000 14.680


<r2> (average value of r2) Å2
<r2> 45.948
(<r2>)1/2 6.778