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: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-996.023138
Energy at 298.15K-996.023855
Nuclear repulsion energy218.941056
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 BLYP/cc-pVDZ
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 643 644 52.29      
2 A 563 564 0.99      
3 A 254 254 1.37      
4 A 161 161 2.39      
5 B 618 619 177.22      
6 B 268 268 10.37      

Unscaled Zero Point Vibrational Energy (zpe) 1253.1 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 1255.1 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 BLYP/cc-pVDZ
ABC
0.34746 0.08301 0.07717

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.406 0.894 -0.417
S2 0.406 -0.894 -0.417
F3 0.406 1.886 0.741
F4 -0.406 -1.886 0.741

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.96361.72723.0116
S21.96363.01161.7272
F31.72723.01163.8589
F43.01161.72723.8589

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 109.201 S2 S1 F3 109.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.293      
2 S 0.293      
3 F -0.293      
4 F -0.293      


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 -1.842 1.842
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.078 -2.333 0.000
y -2.333 -37.440 0.000
z 0.000 0.000 -34.723
Traceless
 xyz
x 2.003 -2.333 0.000
y -2.333 -3.039 0.000
z 0.000 0.000 1.035
Polar
3z2-r22.071
x2-y23.361
xy-2.333
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.517 -0.737 0.000
y -0.737 8.346 0.000
z 0.000 0.000 3.667


<r2> (average value of r2) Å2
<r2> 135.409
(<r2>)1/2 11.637