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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-463.671548
Energy at 298.15K-463.666330
HF Energy-463.912410
Nuclear repulsion energy189.694694
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 B3LYP/6-31G(2df,p)
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 1760 362.90      
2 A1 904 872 61.85      
3 A1 830 801 10.72      
4 A1 535 516 73.40      
5 B1 799 771 12.87      
6 B1 167 161 38.16      
7 B2 979 944 519.38      
8 B2 677 653 0.95      
9 B2 492 474 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 3602.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3476.3 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 B3LYP/6-31G(2df,p)
ABC
0.40530 0.14121 0.10473

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.700
O2 0.000 0.000 -1.901
Mg3 0.000 0.000 1.522
O4 0.000 1.140 0.072
O5 0.000 -1.140 0.072

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20072.22181.37701.3770
O21.20073.42252.27852.2785
Mg32.22183.42251.84451.8445
O41.37702.27851.84452.2805
O51.37702.27851.84452.2805

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 85.580 C1 O5 Mg3 85.580
O2 C1 O4 123.662 O2 C1 O5 123.662
O4 C1 O5 112.676 O4 Mg3 O5 76.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.544      
2 O -0.373      
3 Mg 0.848      
4 O -0.509      
5 O -0.509      


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 10.616 10.616
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 97.352
(<r2>)1/2 9.867