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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 trans 1A
1 2 no CS cis 1A'

Conformer 1 (C2 trans)

Jump to S1C2
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-1194.169777
Energy at 298.15K-1194.172122
HF Energy-1193.751263
Nuclear repulsion energy193.521704
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 QCISD/6-311G*
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 2588 2477 0.76      
2 A 912 873 0.54      
3 A 476 456 0.77      
4 A 307 294 31.83      
5 A 206 197 0.01      
6 B 2587 2476 20.70      
7 B 900 862 11.39      
8 B 482 461 19.73      
9 B 341 327 22.60      

Unscaled Zero Point Vibrational Energy (zpe) 4398.9 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 4211.5 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 QCISD/6-311G*
ABC
0.45493 0.08840 0.07634

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.852
S2 0.000 1.681 -0.389
S3 0.000 -1.681 -0.389
H4 -1.334 1.781 -0.593
H5 1.334 -1.781 -0.593

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08972.08972.65282.6528
S22.08973.36221.35283.7153
S32.08973.36223.71531.3528
H42.65281.35283.71534.4494
H52.65283.71531.35284.4494

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.549 S1 S3 H5 98.549
S2 S1 S3 107.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-1194.169231
Energy at 298.15K-1194.171583
HF Energy-1193.750634
Nuclear repulsion energy193.500611
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 QCISD/6-311G*
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' 2579 2470 26.65      
2 A' 915 876 6.01      
3 A' 476 456 0.66      
4 A' 343 329 24.66      
5 A' 207 198 0.23      
6 A" 2581 2471 1.84      
7 A" 906 867 7.07      
8 A" 482 461 21.94      
9 A" 307 294 12.44      

Unscaled Zero Point Vibrational Energy (zpe) 4398.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 4210.6 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 QCISD/6-311G*
ABC
0.45569 0.08833 0.07631

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.054 0.850 0.000
S2 -0.054 -0.392 1.681
S3 -0.054 -0.392 -1.681
H4 1.285 -0.526 1.831
H5 1.285 -0.526 -1.831

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08962.08962.65312.6531
S22.08963.36141.35343.7608
S32.08963.36143.76081.3534
H42.65311.35343.76083.6628
H52.65313.76081.35343.6628

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.544 S1 S3 H5 98.544
S2 S1 S3 107.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability