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 NaS (Sodium sulfide)

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Π
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-560.408813
Energy at 298.15K-560.409210
HF Energy-560.408813
Nuclear repulsion energy36.986242
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 B3PW91/TZVP
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 313 302 29.02      

Unscaled Zero Point Vibrational Energy (zpe) 156.6 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 151.0 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 B3PW91/TZVP
B
0.19879

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 -1.492
S2 0.000 0.000 1.026

Atom - Atom Distances (Å)
  Na1 S2
Na12.5181
S22.5181

picture of Sodium sulfide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.681      
2 S -0.681      


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 -8.920 8.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.257 0.000 0.000
y 0.000 -18.729 0.000
z 0.000 0.000 -13.707
Traceless
 xyz
x -6.039 0.000 0.000
y 0.000 -0.747 0.000
z 0.000 0.000 6.786
Polar
3z2-r213.572
x2-y2-3.528
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.854 0.000 0.000
y 0.000 3.539 0.000
z 0.000 0.000 9.643


<r2> (average value of r2) Å2
<r2> 52.720
(<r2>)1/2 7.261