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 ClSSCl (Disulfur dichloride)

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 C2 1A
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-1716.777091
Energy at 298.15K-1716.777467
Nuclear repulsion energy329.451703
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 A 550 523 10.07      
2 A 456 434 40.45      
3 A 206 196 0.36      
4 A 100 95 0.34      
5 B 442 421 126.07      
6 B 239 228 8.01      

Unscaled Zero Point Vibrational Energy (zpe) 996.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 948.2 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**
ABC
0.18611 0.04382 0.03908

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.621 0.763 0.738
S2 -0.621 -0.763 0.738
Cl3 0.000 2.148 -0.695
Cl4 0.000 -2.148 -0.695

Atom - Atom Distances (Å)
  S1 S2 Cl3 Cl4
S11.96692.08833.3037
S21.96693.30372.0883
Cl32.08833.30374.2970
Cl43.30372.08834.2970

picture of Disulfur dichloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 Cl4 109.076 S2 S1 Cl3 109.076
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 S 0.091      
2 S 0.091      
3 Cl -0.091      
4 Cl -0.091      


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 1.221 1.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.659 0.724 0.000
y 0.724 -53.399 0.000
z 0.000 0.000 -50.544
Traceless
 xyz
x 1.313 0.724 0.000
y 0.724 -2.798 0.000
z 0.000 0.000 1.485
Polar
3z2-r22.970
x2-y22.740
xy0.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.440 0.907 0.000
y 0.907 14.538 0.000
z 0.000 0.000 8.039


<r2> (average value of r2) Å2
<r2> 253.950
(<r2>)1/2 15.936