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: HF/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 HF/6-311G**
 hartrees
Energy at 0K-939.347324
Energy at 298.15K-939.349450
Nuclear repulsion energy234.727156
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 HF/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 1943 1765 908.15      
2 A1 1084 984 109.61      
3 A1 840 763 84.91      
4 A1 482 438 133.15      
5 B1 955 868 62.58      
6 B1 130 118 26.92      
7 B2 1303 1184 577.77      
8 B2 749 681 1.14      
9 B2 411 373 20.79      

Unscaled Zero Point Vibrational Energy (zpe) 3948.7 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 3587.3 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 HF/6-311G**
ABC
0.43894 0.09215 0.07616

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.059
O2 0.000 0.000 -2.249
Ca3 0.000 0.000 1.463
O4 0.000 1.096 -0.307
O5 0.000 -1.096 -0.307

Atom - Atom Distances (Å)
  C1 O2 Ca3 O4 O5
C11.18962.52251.32901.3290
O21.18963.71212.22952.2295
Ca32.52253.71212.08212.0821
O41.32902.22952.08212.1914
O51.32902.22952.08212.1914

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 124.466
O2 C1 O5 124.466 Ca3 C1 O4 55.534
Ca3 C1 O5 55.534 O4 C1 O5 111.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.718      
2 O -0.531      
3 Ca 1.399      
4 O -0.793      
5 O -0.793      


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 15.731 15.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.968 0.000 0.000
y 0.000 -42.641 0.000
z 0.000 0.000 -27.086
Traceless
 xyz
x 3.895 0.000 0.000
y 0.000 -13.614 0.000
z 0.000 0.000 9.719
Polar
3z2-r219.438
x2-y211.673
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.467 0.000 0.000
y 0.000 3.575 0.000
z 0.000 0.000 6.204


<r2> (average value of r2) Å2
<r2> 131.696
(<r2>)1/2 11.476