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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2/Def2TZVPP

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 MP2/Def2TZVPP
 hartrees
Energy at 0K-1194.325646
Energy at 298.15K-1194.328064
HF Energy-1193.796718
Nuclear repulsion energy197.247894
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 MP2/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 2740 2607 0.12      
2 A 895 851 0.06      
3 A 512 487 0.38      
4 A 320 305 20.29      
5 A 212 202 0.00      
6 B 2739 2607 0.12      
7 B 881 839 9.71      
8 B 509 484 21.34      
9 B 345 328 15.62      

Unscaled Zero Point Vibrational Energy (zpe) 4576.3 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 4354.3 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 MP2/Def2TZVPP
ABC
0.47019 0.09208 0.07947

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.837
S2 0.000 1.648 -0.386
S3 0.000 -1.648 -0.386
H4 -1.326 1.771 -0.511
H5 1.326 -1.771 -0.511

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05232.05232.59012.5901
S22.05233.29581.33723.6689
S32.05233.29583.66891.3372
H42.59011.33723.66894.4242
H52.59013.66891.33724.4242

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.419 S1 S3 H5 97.419
S2 S1 S3 106.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-1194.325451
Energy at 298.15K-1194.327884
HF Energy-1193.796432
Nuclear repulsion energy197.295684
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 MP2/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' 2734 2602 0.66      
2 A' 898 854 3.51      
3 A' 512 487 0.45      
4 A' 345 329 15.56      
5 A' 212 202 0.05      
6 A" 2737 2605 0.15      
7 A" 884 841 7.01      
8 A" 509 485 23.37      
9 A" 330 314 9.12      

Unscaled Zero Point Vibrational Energy (zpe) 4581.0 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 4358.9 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 MP2/Def2TZVPP
ABC
0.46975 0.09218 0.07953

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.052 0.828 0.000
S2 -0.052 -0.396 1.647
S3 -0.052 -0.396 -1.647
H4 1.250 -0.289 1.933
H5 1.250 -0.289 -1.933

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05202.05202.58432.5843
S22.05203.29411.33733.8105
S32.05203.29413.81051.3373
H42.58431.33733.81053.8650
H52.58433.81051.33733.8650

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.112 S1 S3 H5 97.112
S2 S1 S3 106.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability