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 MgH (magnesium monohydride)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-200.610917
Energy at 298.15K-200.611119
HF Energy-200.610917
Nuclear repulsion energy3.637842
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 wB97X-D/cc-pVDZ
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 1461 1392 234.66      

Unscaled Zero Point Vibrational Energy (zpe) 730.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 696.0 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 wB97X-D/cc-pVDZ
B
5.72018

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 0.134
H2 0.000 0.000 -1.611

Atom - Atom Distances (Å)
  Mg1 H2
Mg11.7456
H21.7456

picture of magnesium monohydride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.185      
2 H -0.185      


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 1.244 1.244
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.622 0.000 0.000
y 0.000 -11.622 0.000
z 0.000 0.000 -19.355
Traceless
 xyz
x 3.866 0.000 0.000
y 0.000 3.866 0.000
z 0.000 0.000 -7.733
Polar
3z2-r2-15.466
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 8.719 0.000 0.000
y 0.000 8.719 0.000
z 0.000 0.000 7.145


<r2> (average value of r2) Å2
<r2> 11.682
(<r2>)1/2 3.418