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All results from a given calculation for FSSF (Difluorodisulfane)

using model chemistry: mPW1PW91/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-996.155029
Energy at 298.15K 
HF Energy-996.155029
Nuclear repulsion energy229.928604
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 mPW1PW91/aug-cc-pV(T+d)Z
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/aug-cc-pV(T+d)Z
ABC
0.37888 0.09223 0.08532

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pV(T+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.383 0.863 -0.402
S2 0.383 -0.863 -0.402
F3 0.383 1.778 0.714
F4 -0.383 -1.778 0.714

Atom - Atom Distances (Å)
  S1 S2 F3 F4
S11.88881.63402.8672
S21.88882.86721.6340
F31.63402.86723.6383
F42.86721.63403.6383

picture of Difluorodisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 F4 108.740 S2 S1 F3 108.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.437      
2 S 0.437      
3 F -0.437      
4 F -0.437      


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 -1.381 1.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.660 -2.099 0.000
y -2.099 -36.647 0.000
z 0.000 0.000 -35.416
Traceless
 xyz
x 1.371 -2.099 0.000
y -2.099 -1.609 0.000
z 0.000 0.000 0.238
Polar
3z2-r20.476
x2-y21.987
xy-2.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.364 -0.546 0.000
y -0.546 8.801 0.000
z 0.000 0.000 5.484


<r2> (average value of r2) Å2
<r2> 124.659
(<r2>)1/2 11.165