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

using model chemistry: QCISD/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/6-31G*
 hartrees
Energy at 0K-462.769945
Energy at 298.15K-462.771804
HF Energy-462.076729
Nuclear repulsion energy188.108018
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/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 1847 1759 402.08      
2 A1 921 877 86.23      
3 A1 822 782 6.77      
4 A1 540 514 87.40      
5 B1 807 768 21.47      
6 B1 166 158 45.20      
7 B2 1023 974 497.64      
8 B2 683 651 1.44      
9 B2 495 471 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 3650.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 3476.6 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 QCISD/6-31G*
ABC
0.40217 0.13809 0.10280

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 -1.917
Mg3 0.000 0.000 1.544
O4 0.000 1.145 0.065
O5 0.000 -1.145 0.065

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.21102.25001.38011.3801
O21.21103.46102.28882.2888
Mg32.25003.46101.87031.8703
O41.38012.28881.87032.2894
O51.38012.28881.87032.2894

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 86.223 C1 O5 Mg3 86.223
O2 C1 O4 123.960 O2 C1 O5 123.960
O4 C1 O5 112.079 O4 Mg3 O5 75.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability