return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CaCO3 (Calcium Carbonate)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-299.581782
Energy at 298.15K-299.583427
Nuclear repulsion energy161.880726
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 MP2/SDD
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 1647 1590 570.11      
2 A1 820 792 153.39      
3 A1 674 650 59.19      
4 A1 423 408 90.84      
5 B1 719 694 21.88      
6 B1 129 124 35.50      
7 B2 873 843 458.21      
8 B2 585 565 12.33      
9 B2 346 334 5.83      

Unscaled Zero Point Vibrational Energy (zpe) 3107.7 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 2999.9 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 MP2/SDD
ABC
0.38623 0.08668 0.07080

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.106
O2 0.000 0.000 -2.354
Ca3 0.000 0.000 1.490
O4 0.000 1.168 -0.271
O5 0.000 -1.168 -0.271

Atom - Atom Distances (Å)
  C1 O2 Ca3 O4 O5
C11.24842.59651.43581.4358
O21.24843.84492.38852.3885
Ca32.59653.84492.11362.1136
O41.43582.38852.11362.3361
O51.43582.38852.11362.3361

picture of Calcium Carbonate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 Ca3 180.000 O2 C1 O4 125.560
O2 C1 O5 125.560 Ca3 C1 O4 54.440
Ca3 C1 O5 54.440 O4 C1 O5 108.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability