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

using model chemistry: PBEPBEultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-460.877303
Energy at 298.15K-460.878770
HF Energy-460.877303
Nuclear repulsion energy183.903379
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 PBEPBEultrafine/3-21G
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 1729 1714 218.68      
2 A1 791 784 42.17      
3 A1 752 745 1.95      
4 A1 497 493 39.67      
5 B1 691 685 0.74      
6 B1 144 143 30.75      
7 B2 711 705 322.11      
8 B2 590 585 15.04      
9 B2 383 380 56.29      

Unscaled Zero Point Vibrational Energy (zpe) 3145.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3116.5 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 PBEPBEultrafine/3-21G
ABC
0.37800 0.13323 0.09851

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.732
O2 0.000 0.000 -1.959
Mg3 0.000 0.000 1.561
O4 0.000 1.181 0.083
O5 0.000 -1.181 0.083

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.22712.29351.43491.4349
O21.22713.52062.35922.3592
Mg32.29353.52061.89181.8918
O41.43492.35921.89182.3614
O51.43492.35921.89182.3614

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 86.011 C1 O5 Mg3 86.011
O2 C1 O4 124.629 O2 C1 O5 124.629
O4 C1 O5 110.743 O4 Mg3 O5 77.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.647      
2 O -0.452      
3 Mg 0.846      
4 O -0.520      
5 O -0.520      


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 9.251 9.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.016 0.000 0.000
y 0.000 -37.234 0.000
z 0.000 0.000 -19.585
Traceless
 xyz
x 0.393 0.000 0.000
y 0.000 -13.433 0.000
z 0.000 0.000 13.040
Polar
3z2-r226.080
x2-y29.218
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.989 0.000 0.000
y 0.000 4.993 0.000
z 0.000 0.000 11.484


<r2> (average value of r2) Å2
<r2> 103.259
(<r2>)1/2 10.162