return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for MgCO3 (Magnesium Carbonate)

using model chemistry: B2PLYP=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-463.541029
Energy at 298.15K-463.542858
HF Energy-463.301607
Nuclear repulsion energy188.363738
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 B2PLYP=FULL/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 A1 1824 1730 380.00      
2 A1 901 855 77.88      
3 A1 814 772 5.46      
4 A1 535 507 76.63      
5 B1 792 751 15.84      
6 B1 167 158 41.96      
7 B2 989 938 488.57      
8 B2 671 637 0.22      
9 B2 489 464 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 3590.9 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 3405.7 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 B2PLYP=FULL/6-31G*
ABC
0.40097 0.13894 0.10319

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.704
O2 0.000 0.000 -1.913
Mg3 0.000 0.000 1.537
O4 0.000 1.146 0.068
O5 0.000 -1.146 0.068

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20982.24081.38171.3817
O21.20983.45072.28892.2889
Mg32.24083.45071.86381.8638
O41.38172.28891.86382.2928
O51.38172.28891.86382.2928

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 85.974 C1 O5 Mg3 85.974
O2 C1 O4 123.932 O2 C1 O5 123.932
O4 C1 O5 112.135 O4 Mg3 O5 75.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability