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 CaCO3 (Calcium Carbonate)

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-940.273169
Energy at 298.15K-940.275136
Nuclear repulsion energy232.859155
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 QCISD/6-311G**
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 1816 1732 648.79      
2 A1 973 929 105.01      
3 A1 774 738 60.74      
4 A1 462 440 95.89      
5 B1 847 808 24.93      
6 B1 119 114 25.45      
7 B2 1125 1073 393.50      
8 B2 684 652 0.13      
9 B2 399 381 13.67      

Unscaled Zero Point Vibrational Energy (zpe) 3598.5 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 3433.3 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 QCISD/6-311G**
ABC
0.41766 0.09219 0.07552

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.055
O2 0.000 0.000 -2.264
Ca3 0.000 0.000 1.456
O4 0.000 1.123 -0.293
O5 0.000 -1.123 -0.293

Atom - Atom Distances (Å)
  C1 O2 Ca3 O4 O5
C11.20862.51191.35771.3577
O21.20863.72042.26872.2687
Ca32.51193.72042.07892.0789
O41.35772.26872.07892.2465
O51.35772.26872.07892.2465

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 124.172
O2 C1 O5 124.172 Ca3 C1 O4 55.828
Ca3 C1 O5 55.828 O4 C1 O5 111.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability