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

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-461.883526
Energy at 298.15K-461.885317
HF Energy-461.883526
Nuclear repulsion energy190.656178
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 LSDA/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 1823 1794 261.96      
2 A1 914 899 43.80      
3 A1 819 806 6.10      
4 A1 532 523 60.40      
5 B1 777 765 5.99      
6 B1 165 162 34.82      
7 B2 967 952 527.06      
8 B2 666 655 5.32      
9 B2 438 431 10.59      

Unscaled Zero Point Vibrational Energy (zpe) 3550.6 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 3493.8 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 LSDA/6-31G(2df,p)
ABC
0.40759 0.14306 0.10589

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.689
O2 0.000 0.000 -1.891
Mg3 0.000 0.000 1.511
O4 0.000 1.137 0.070
O5 0.000 -1.137 0.070

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20212.20021.36701.3670
O21.20213.40232.26682.2668
Mg32.20023.40231.83581.8358
O41.36702.26681.83582.2741
O51.36702.26681.83582.2741

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 85.450 C1 O5 Mg3 85.450
O2 C1 O4 123.720 O2 C1 O5 123.720
O4 C1 O5 112.560 O4 Mg3 O5 76.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.466      
2 O -0.325      
3 Mg 0.713      
4 O -0.427      
5 O -0.427      


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 10.066 10.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.563 0.000 0.000
y 0.000 -36.042 0.000
z 0.000 0.000 -17.846
Traceless
 xyz
x -0.619 0.000 0.000
y 0.000 -13.338 0.000
z 0.000 0.000 13.957
Polar
3z2-r227.913
x2-y28.479
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.216 0.000 0.000
y 0.000 5.208 0.000
z 0.000 0.000 10.253


<r2> (average value of r2) Å2
<r2> 96.586
(<r2>)1/2 9.828