return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-457.429229
Energy at 298.15K-457.430934
HF Energy-457.429229
Nuclear repulsion energy187.973900
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 PBE1PBE/STO-3G
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 1897 1673 151.47      
2 A1 954 842 10.35      
3 A1 913 806 49.46      
4 A1 569 502 44.72      
5 B1 670 591 13.78      
6 B1 164 144 37.29      
7 B2 1121 989 170.47      
8 B2 804 709 0.16      
9 B2 504 445 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 3797.4 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 3349.7 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 PBE1PBE/STO-3G
ABC
0.37851 0.14274 0.10365

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.688
O2 0.000 0.000 -1.940
Mg3 0.000 0.000 1.468
O4 0.000 1.180 0.127
O5 0.000 -1.180 0.127

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.25132.15691.43411.4341
O21.25133.40822.37962.3796
Mg32.15693.40821.78671.7867
O41.43412.37961.78672.3598
O51.43412.37961.78672.3598

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 83.310 C1 O5 Mg3 83.310
O2 C1 O4 124.639 O2 C1 O5 124.639
O4 C1 O5 110.723 O4 Mg3 O5 82.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.146      
2 O -0.277      
3 Mg 0.890      
4 O -0.380      
5 O -0.380      


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 9.245 9.245
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.932 0.000 0.000
y 0.000 -30.657 0.000
z 0.000 0.000 -16.517
Traceless
 xyz
x 0.655 0.000 0.000
y 0.000 -10.933 0.000
z 0.000 0.000 10.278
Polar
3z2-r220.556
x2-y27.725
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.064 0.000 0.000
y 0.000 1.930 0.000
z 0.000 0.000 5.797


<r2> (average value of r2) Å2
<r2> 95.948
(<r2>)1/2 9.795