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

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-53.387461
Energy at 298.15K-53.389523
HF Energy-53.387461
Nuclear repulsion energy65.434393
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 HF/CEP-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 A1 1969 1768 804.96      
2 A1 1045 938 107.79      
3 A1 894 802 31.25      
4 A1 560 503 129.35      
5 B1 914 821 54.14      
6 B1 180 162 54.02      
7 B2 1265 1136 732.39      
8 B2 759 681 3.96      
9 B2 537 482 14.15      

Unscaled Zero Point Vibrational Energy (zpe) 4060.8 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 3646.6 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 HF/CEP-31G*
ABC
0.42597 0.14038 0.10559

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.702
O2 0.000 0.000 -1.902
Mg3 0.000 0.000 1.530
O4 0.000 1.112 0.067
O5 0.000 -1.112 0.067

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20012.23211.35231.3523
O21.20013.43222.26162.2616
Mg32.23213.43221.83781.8378
O41.35232.26161.83782.2245
O51.35232.26161.83782.2245

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 87.420 C1 O5 Mg3 87.420
O2 C1 O4 124.663 O2 C1 O5 124.663
O4 C1 O5 110.674 O4 Mg3 O5 74.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.374      
2 O -0.248      
3 Mg 1.055      
4 O -0.590      
5 O -0.590      


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 13.418 13.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.838 0.000 0.000
y 0.000 -35.946 0.000
z 0.000 0.000 -13.461
Traceless
 xyz
x -0.135 0.000 0.000
y 0.000 -16.796 0.000
z 0.000 0.000 16.931
Polar
3z2-r233.863
x2-y211.108
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.805 0.000 0.000
y 0.000 3.233 0.000
z 0.000 0.000 5.896


<r2> (average value of r2) Å2
<r2> 58.721
(<r2>)1/2 7.663