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 HSSSH (trisulfane)

using model chemistry: TPSSh/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS cis 1A'

Conformer 1 (C2 trans)

Jump to S1C2
Vibrational Frequencies calculated at TPSSh/6-31G
Rotational Constants (cm-1) from geometry optimized at TPSSh/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at TPSSh/6-31G
 hartrees
Energy at 0K-1195.680753
Energy at 298.15K-1195.682721
HF Energy-1195.680753
Nuclear repulsion energy180.743295
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 TPSSh/6-31G
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' 2496 2402 84.68      
2 A' 788 759 4.80      
3 A' 417 401 0.79      
4 A' 293 282 33.54      
5 A' 164 158 0.29      
6 A" 2495 2401 0.29      
7 A" 788 758 1.44      
8 A" 401 386 40.20      
9 A" 258 249 11.05      

Unscaled Zero Point Vibrational Energy (zpe) 4050.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 3896.6 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 TPSSh/6-31G
ABC
0.40262 0.07624 0.06593

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.055 0.907 0.000
S2 -0.055 -0.421 1.811
S3 -0.055 -0.421 -1.811
H4 1.315 -0.521 1.960
H5 1.315 -0.521 -1.960

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.24572.24572.78532.7853
S22.24573.62201.38124.0135
S32.24573.62204.01351.3812
H42.78531.38124.01353.9206
H52.78534.01351.38123.9206

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.476 S1 S3 H5 97.476
S2 S1 S3 107.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.051      
2 S -0.056      
3 S -0.056      
4 H 0.082      
5 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.639 -0.499 0.000 2.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.386 -0.358 0.000
y -0.358 6.036 0.000
z 0.000 0.000 13.402


<r2> (average value of r2) Å2
<r2> 161.031
(<r2>)1/2 12.690