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

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-462.810595
Energy at 298.15K-462.812431
HF Energy-462.075544
Nuclear repulsion energy187.729557
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 QCISD(T)=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 1831 1831        
2 A1 896 896        
3 A1 810 810        
4 A1 534 534        
5 B1 794 794        
6 B1 165 165        
7 B2 1018 1018        
8 B2 676 676        
9 B2 495 495        

Unscaled Zero Point Vibrational Energy (zpe) 3610.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3610.2 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 QCISD(T)=FULL/6-31G*
ABC
0.39791 0.13804 0.10249

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.706
O2 0.000 0.000 -1.919
Mg3 0.000 0.000 1.543
O4 0.000 1.151 0.067
O5 0.000 -1.151 0.067

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.21302.24881.38611.3861
O21.21303.46182.29502.2950
Mg32.24883.46181.87181.8718
O41.38612.29501.87182.3016
O51.38612.29501.87182.3016

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 85.937 C1 O5 Mg3 85.937
O2 C1 O4 123.876 O2 C1 O5 123.876
O4 C1 O5 112.249 O4 Mg3 O5 75.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability