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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: B2PLYP/aug-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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-995.811558
Energy at 298.15K 
HF Energy-995.521379
Nuclear repulsion energy227.147463
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 B2PLYP/aug-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 699 672 91.10      
2 A 612 588 2.83      
3 A 286 275 1.30      
4 A 180 173 1.53      
5 B 664 638 233.68      
6 B 314 301 13.95      

Unscaled Zero Point Vibrational Energy (zpe) 1376.8 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 1323.1 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 B2PLYP/aug-cc-pVTZ
ABC
0.36316 0.09075 0.08388

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.393 0.871 -0.409
S2 0.393 -0.871 -0.409
F3 0.393 1.788 0.728
F4 -0.393 -1.788 0.728

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.91171.65872.8922
S21.91172.89221.6587
F31.65872.89223.6612
F42.89221.65873.6612

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.995 S2 S1 F3 107.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.448      
2 S 0.448      
3 F -0.448      
4 F -0.448      


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 -1.604 1.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.050 -2.363 0.000
y -2.363 -37.425 0.000
z 0.000 0.000 -35.916
Traceless
 xyz
x 1.621 -2.363 0.000
y -2.363 -1.942 0.000
z 0.000 0.000 0.321
Polar
3z2-r20.643
x2-y22.375
xy-2.363
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.483 -0.536 0.000
y -0.536 9.082 0.000
z 0.000 0.000 5.651


<r2> (average value of r2) Å2
<r2> 127.027
(<r2>)1/2 11.271