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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-53.240048
Energy at 298.15K-53.241987
HF Energy-53.240048
Nuclear repulsion energy63.960546
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 HF/CEP-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 1849 1666 687.46      
2 A1 962 867 99.97      
3 A1 833 751 30.72      
4 A1 529 477 123.30      
5 B1 835 752 80.35      
6 B1 176 158 63.80      
7 B2 1153 1039 657.07      
8 B2 724 653 3.79      
9 B2 504 454 12.63      

Unscaled Zero Point Vibrational Energy (zpe) 3781.6 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 3408.7 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 HF/CEP-31G
ABC
0.41838 0.13095 0.09973

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.745
O2 0.000 0.000 -1.963
Mg3 0.000 0.000 1.585
O4 0.000 1.122 0.072
O5 0.000 -1.122 0.072

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.21822.33011.38771.3877
O21.21823.54832.32342.3234
Mg32.33013.54831.88461.8846
O41.38772.32341.88462.2446
O51.38772.32341.88462.2446

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 89.477 C1 O5 Mg3 89.477
O2 C1 O4 126.027 O2 C1 O5 126.027
O4 C1 O5 107.947 O4 Mg3 O5 73.099
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.419      
2 O -0.240      
3 Mg 1.354      
4 O -0.767      
5 O -0.767      


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 14.300 14.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.392 0.000 0.000
y 0.000 -38.927 0.000
z 0.000 0.000 -13.752
Traceless
 xyz
x 0.948 0.000 0.000
y 0.000 -19.355 0.000
z 0.000 0.000 18.407
Polar
3z2-r236.815
x2-y213.535
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.424 0.000 0.000
y 0.000 2.962 0.000
z 0.000 0.000 6.275


<r2> (average value of r2) Å2
<r2> 61.792
(<r2>)1/2 7.861