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: CID/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 CID/3-21G
 hartrees
Energy at 0K-934.802405
Energy at 298.15K-934.804308
Nuclear repulsion energy223.908100
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 CID/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 1816 1691 607.19      
2 A1 946 881 41.07      
3 A1 735 685 17.91      
4 A1 443 412 110.91      
5 B1 818 762 39.73      
6 B1 121 112 36.91      
7 B2 1076 1003 625.90      
8 B2 681 635 0.15      
9 B2 391 364 12.04      

Unscaled Zero Point Vibrational Energy (zpe) 3513.6 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 3273.2 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 CID/3-21G
ABC
0.39731 0.08391 0.06928

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.114
O2 0.000 0.000 -2.343
Ca3 0.000 0.000 1.539
O4 0.000 1.152 -0.334
O5 0.000 -1.152 -0.334

Atom - Atom Distances (Å)
  C1 O2 Ca3 O4 O5
C11.22902.65301.39121.3912
O21.22903.88202.31602.3160
Ca32.65303.88202.19842.1984
O41.39122.31602.19842.3033
O51.39122.31602.19842.3033

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 124.121
O2 C1 O5 124.121 Ca3 C1 O4 55.879
Ca3 C1 O5 55.879 O4 C1 O5 111.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability