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 FSSF (Difluorodisulfane)

using model chemistry: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-994.004564
Energy at 298.15K-994.005696
HF Energy-994.004564
Nuclear repulsion energy231.826221
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/daug-cc-pVTZ
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 868 785 115.63      
2 A 595 538 0.13      
3 A 307 278 0.14      
4 A 192 174 2.11      
5 B 837 757 209.65      
6 B 360 326 16.25      

Unscaled Zero Point Vibrational Energy (zpe) 1579.4 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 1428.8 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/daug-cc-pVTZ
ABC
0.37078 0.09558 0.08860

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.394 0.887 -0.402
S2 0.394 -0.887 -0.402
F3 0.394 1.703 0.714
F4 -0.394 -1.703 0.714

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.94201.59132.8203
S21.94202.82031.5913
F31.59132.82033.4958
F42.82031.59133.4958

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 105.487 S2 S1 F3 105.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.623      
2 S 0.623      
3 F -0.623      
4 F -0.623      


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 -1.349 1.349
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.179 -2.118 0.000
y -2.118 -36.456 0.000
z 0.000 0.000 -35.920
Traceless
 xyz
x 1.009 -2.118 0.000
y -2.118 -0.906 0.000
z 0.000 0.000 -0.102
Polar
3z2-r2-0.205
x2-y21.277
xy-2.118
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.197 -0.567 0.000
y -0.567 7.750 0.000
z 0.000 0.000 5.203


<r2> (average value of r2) Å2
<r2> 121.902
(<r2>)1/2 11.041