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: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-464.021823
Energy at 298.15K-464.023684
HF Energy-464.021823
Nuclear repulsion energy189.753829
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 B3LYP/Def2TZVPP
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 1783 1716 433.58      
2 A1 908 874 74.91      
3 A1 825 794 11.42      
4 A1 531 511 86.48      
5 B1 807 777 13.98      
6 B1 168 162 40.53      
7 B2 991 954 549.89      
8 B2 674 649 0.46      
9 B2 491 473 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 3588.7 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 3454.5 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 B3LYP/Def2TZVPP
ABC
0.40827 0.14074 0.10466

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.694
O2 0.000 0.000 -1.896
Mg3 0.000 0.000 1.524
O4 0.000 1.136 0.065
O5 0.000 -1.136 0.065

Atom - Atom Distances (Å)
  C1 O2 Mg3 O4 O5
C11.20212.21721.36621.3662
O21.20213.41932.26642.2664
Mg32.21723.41931.84841.8484
O41.36622.26641.84842.2720
O51.36622.26641.84842.2720

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 85.828 C1 O5 Mg3 85.828
O2 C1 O4 123.748 O2 C1 O5 123.748
O4 C1 O5 112.503 O4 Mg3 O5 75.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.494      
2 O -0.318      
3 Mg 0.976      
4 O -0.576      
5 O -0.576      


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 11.388 11.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.596 0.000 0.000
y 0.000 -37.217 0.000
z 0.000 0.000 -17.649
Traceless
 xyz
x -0.163 0.000 0.000
y 0.000 -14.595 0.000
z 0.000 0.000 14.758
Polar
3z2-r229.515
x2-y29.622
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.985 0.000 0.000
y 0.000 4.926 0.000
z 0.000 0.000 9.310


<r2> (average value of r2) Å2
<r2> 97.737
(<r2>)1/2 9.886