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: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-996.193939
Energy at 298.15K-996.194871
HF Energy-996.193939
Nuclear repulsion energy227.790085
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 B3LYP/Def2TZVPP
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 702 676 95.26      
2 A 609 586 0.43      
3 A 289 278 1.19      
4 A 182 175 2.01      
5 B 664 639 243.65      
6 B 316 305 13.33      

Unscaled Zero Point Vibrational Energy (zpe) 1380.9 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 1329.2 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 B3LYP/Def2TZVPP
ABC
0.37115 0.09057 0.08385

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.383 0.891 -0.412
S2 0.383 -0.891 -0.412
F3 0.383 1.766 0.732
F4 -0.383 -1.766 0.732

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.94041.63072.8932
S21.94042.89321.6307
F31.63072.89323.6142
F42.89321.63073.6142

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 107.913 S2 S1 F3 107.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.255      
2 S 0.255      
3 F -0.255      
4 F -0.255      


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 -1.614 1.614
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.524 -2.249 0.000
y -2.249 -37.143 0.000
z 0.000 0.000 -35.291
Traceless
 xyz
x 1.693 -2.249 0.000
y -2.249 -2.235 0.000
z 0.000 0.000 0.542
Polar
3z2-r21.084
x2-y22.619
xy-2.249
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.319 -0.726 0.000
y -0.726 8.266 0.000
z 0.000 0.000 4.408


<r2> (average value of r2) Å2
<r2> 126.573
(<r2>)1/2 11.250