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All results from a given calculation for MgCO3 (Magnesium Carbonate)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-460.877284
Energy at 298.15K-460.878750
HF Energy-460.877284
Nuclear repulsion energy183.892173
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 PBEPBE/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1730 1714 217.77      
2 A1 791 784 42.20      
3 A1 753 746 1.73      
4 A1 498 493 39.78      
5 B1 692 685 0.69      
6 B1 144 143 30.71      
7 B2 709 702 322.99      
8 B2 591 586 15.90      
9 B2 382 378 56.87      

Unscaled Zero Point Vibrational Energy (zpe) 3144.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3115.8 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 PBEPBE/3-21G
ABC
0.37792 0.13322 0.09850

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.732
O2 0.000 0.000 -1.959
Mg3 0.000 0.000 1.561
O4 0.000 1.181 0.083
O5 0.000 -1.181 0.083

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.22712.29371.43491.4349
O21.22713.52082.35922.3592
Mg32.29373.52081.89211.8921
O41.43492.35921.89212.3617
O51.43492.35921.89212.3617

picture of Magnesium Carbonate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 Mg3 86.006 C1 O5 Mg3 86.006
O2 C1 O4 124.621 O2 C1 O5 124.621
O4 C1 O5 110.758 O4 Mg3 O5 77.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.647      
2 O -0.452      
3 Mg 0.845      
4 O -0.520      
5 O -0.520      


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 9.252 9.252
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.017 0.000 0.000
y 0.000 -37.235 0.000
z 0.000 0.000 -19.584
Traceless
 xyz
x 0.392 0.000 0.000
y 0.000 -13.434 0.000
z 0.000 0.000 13.042
Polar
3z2-r226.084
x2-y29.218
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.001 0.000 0.000
y 0.000 4.998 0.000
z 0.000 0.000 11.531


<r2> (average value of r2) Å2
<r2> 103.269
(<r2>)1/2 10.162