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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-463.811694
Energy at 298.15K-463.813587
HF Energy-463.811694
Nuclear repulsion energy189.204029
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 mPW1PW91/6-31+G**
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 1735 495.53      
2 A1 945 900 78.78      
3 A1 830 790 14.69      
4 A1 536 511 96.93      
5 B1 818 778 17.20      
6 B1 168 160 43.56      
7 B2 1074 1023 588.24      
8 B2 686 653 0.81      
9 B2 491 467 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 3685.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 3507.9 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 mPW1PW91/6-31+G**
ABC
0.41091 0.13892 0.10382

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.702
O2 0.000 0.000 -1.910
Mg3 0.000 0.000 1.541
O4 0.000 1.132 0.063
O5 0.000 -1.132 0.063

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20802.24301.36641.3664
O21.20803.45102.27452.2745
Mg32.24303.45101.86231.8623
O41.36642.27451.86232.2649
O51.36642.27451.86232.2649

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 86.572 C1 O5 Mg3 86.572
O2 C1 O4 124.024 O2 C1 O5 124.024
O4 C1 O5 111.952 O4 Mg3 O5 74.904
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.777      
2 O -0.568      
3 Mg 0.927      
4 O -0.568      
5 O -0.568      


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 12.139 12.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.628 0.000 0.000
y 0.000 -37.562 0.000
z 0.000 0.000 -16.885
Traceless
 xyz
x -0.405 0.000 0.000
y 0.000 -15.305 0.000
z 0.000 0.000 15.710
Polar
3z2-r231.420
x2-y29.934
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.967 0.000 0.000
y 0.000 4.907 0.000
z 0.000 0.000 9.111


<r2> (average value of r2) Å2
<r2> 98.306
(<r2>)1/2 9.915