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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-461.184232
Energy at 298.15K-461.186042
HF Energy-461.184232
Nuclear repulsion energy186.901052
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 B3PW91/3-21G*
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 1835 1761 326.60      
2 A1 846 812 50.27      
3 A1 819 786 29.99      
4 A1 533 512 68.22      
5 B1 760 729 16.22      
6 B1 169 162 46.35      
7 B2 917 880 384.28      
8 B2 660 633 17.53      
9 B2 507 487 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 3523.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 3380.2 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 B3PW91/3-21G*
ABC
0.38707 0.13835 0.10192

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.718
O2 0.000 0.000 -1.932
Mg3 0.000 0.000 1.524
O4 0.000 1.167 0.093
O5 0.000 -1.167 0.093

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.21382.24181.42101.4210
O21.21383.45572.33712.3371
Mg32.24183.45571.84621.8462
O41.42102.33711.84622.3336
O51.42102.33711.84622.3336

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 85.607 C1 O5 Mg3 85.607
O2 C1 O4 124.806 O2 C1 O5 124.806
O4 C1 O5 110.389 O4 Mg3 O5 78.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.738      
2 O -0.516      
3 Mg 0.827      
4 O -0.524      
5 O -0.524      


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 10.358 10.358
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.258 0.000 0.000
y 0.000 -37.323 0.000
z 0.000 0.000 -17.099
Traceless
 xyz
x -0.047 0.000 0.000
y 0.000 -15.144 0.000
z 0.000 0.000 15.191
Polar
3z2-r230.383
x2-y210.065
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.069 0.000 0.000
y 0.000 3.907 0.000
z 0.000 0.000 8.803


<r2> (average value of r2) Å2
<r2> 99.740
(<r2>)1/2 9.987