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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-995.516225
Energy at 298.15K-995.517028
Nuclear repulsion energy221.240835
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 PBEPBE/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 672 668 57.42      
2 A 603 600 0.05      
3 A 263 261 1.29      
4 A 166 165 2.32      
5 B 645 641 187.36      
6 B 278 276 10.43      

Unscaled Zero Point Vibrational Energy (zpe) 1313.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 1305.4 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 PBEPBE/cc-pVDZ
ABC
0.35508 0.08473 0.07869

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.400 0.883 -0.413
S2 0.400 -0.883 -0.413
F3 0.400 1.869 0.734
F4 -0.400 -1.869 0.734

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.93881.71152.9819
S21.93882.98191.7115
F31.71152.98193.8235
F42.98191.71153.8235

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 109.396 S2 S1 F3 109.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.287      
2 S 0.287      
3 F -0.287      
4 F -0.287      


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 -1.727 1.727
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.107 -2.184 0.000
y -2.184 -37.187 0.000
z 0.000 0.000 -34.707
Traceless
 xyz
x 1.840 -2.184 0.000
y -2.184 -2.780 0.000
z 0.000 0.000 0.939
Polar
3z2-r21.879
x2-y23.080
xy-2.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.502 -0.744 0.000
y -0.744 8.223 0.000
z 0.000 0.000 3.639


<r2> (average value of r2) Å2
<r2> 133.086
(<r2>)1/2 11.536