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 CaS (Calcium sulfide)

using model chemistry: PBE1PBE/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at PBE1PBE/cc-pCVTZ
 hartrees
Energy at 0K-1075.509756
Energy at 298.15K-1075.510053
HF Energy-1075.509756
Nuclear repulsion energy73.939257
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 PBE1PBE/cc-pCVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 493 493 49.44      

Unscaled Zero Point Vibrational Energy (zpe) 246.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 246.5 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 PBE1PBE/cc-pCVTZ
B
0.18095

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 1.018
S2 0.000 0.000 -1.272

Atom - Atom Distances (Å)
  Ca1 S2
Ca12.2902
S22.2902

picture of Calcium sulfide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.624      
2 S -0.624      


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 10.328 10.328
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.089 0.000 0.000
y 0.000 -29.089 0.000
z 0.000 0.000 -27.316
Traceless
 xyz
x -0.886 0.000 0.000
y 0.000 -0.886 0.000
z 0.000 0.000 1.773
Polar
3z2-r23.545
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 8.755 0.000 0.000
y 0.000 8.755 0.000
z 0.000 0.000 18.186


<r2> (average value of r2) Å2
<r2> 64.422
(<r2>)1/2 8.026