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 CaCl2 (Calcium Chloride)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-1598.145372
Energy at 298.15K-1598.145314
HF Energy-1598.145372
Nuclear repulsion energy172.241672
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 mPW1PW91/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 273 260 0.00      
2 Σu 440 419 154.06      
3 Πu 65 62 78.12      
3 Πu 65 62 78.12      

Unscaled Zero Point Vibrational Energy (zpe) 421.5 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 401.2 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 mPW1PW91/6-31+G**
B
0.03756

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.000
Cl2 0.000 0.000 2.533
Cl3 0.000 0.000 -2.533

Atom - Atom Distances (Å)
  Ca1 Cl2 Cl3
Ca12.53312.5331
Cl22.53315.0662
Cl32.53315.0662

picture of Calcium Chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 Ca1 Cl3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 1.147      
2 Cl -0.574      
3 Cl -0.574      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.060 0.000 0.000
y 0.000 -39.060 0.000
z 0.000 0.000 -78.132
Traceless
 xyz
x 19.536 0.000 0.000
y 0.000 19.536 0.000
z 0.000 0.000 -39.073
Polar
3z2-r2-78.146
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.695 0.000 0.000
y 0.000 4.695 0.000
z 0.000 0.000 8.776


<r2> (average value of r2) Å2
<r2> 250.696
(<r2>)1/2 15.833