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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-67.401457
Energy at 298.15K-67.402194
Nuclear repulsion energy56.556739
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 778 710 58.10      
2 A 505 461 0.50      
3 A 227 207 0.01      
4 A 130 119 6.75      
5 B 767 700 97.99      
6 B 277 252 17.20      

Unscaled Zero Point Vibrational Energy (zpe) 1341.9 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 1224.5 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/CEP-121G
ABC
0.29052 0.08455 0.07966

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.474 0.960 -0.437
S2 0.474 -0.960 -0.437
F3 0.474 1.759 0.777
F4 -0.474 -1.759 0.777

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S12.14181.73532.9775
S22.14182.97751.7353
F31.73532.97753.6427
F42.97751.73533.6427

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 99.811 S2 S1 F3 99.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.465      
2 S 0.465      
3 F -0.465      
4 F -0.465      


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 -3.092 3.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.371 -3.798 0.000
y -3.798 -39.365 0.000
z 0.000 0.000 -35.598
Traceless
 xyz
x 3.110 -3.798 0.000
y -3.798 -4.380 0.000
z 0.000 0.000 1.270
Polar
3z2-r22.540
x2-y24.994
xy-3.798
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.998 -0.768 0.000
y -0.768 8.157 0.000
z 0.000 0.000 4.064


<r2> (average value of r2) Å2
<r2> 93.714
(<r2>)1/2 9.681