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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-1194.256795
Energy at 298.15K-1194.259202
HF Energy-1193.766551
Nuclear repulsion energy194.580851
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=FULL/TZVP
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 2749 2619 0.22      
2 A 901 859 0.27      
3 A 504 480 0.71      
4 A 315 300 27.34      
5 A 209 199 0.00      
6 B 2748 2618 5.10      
7 B 888 846 9.46      
8 B 505 481 23.57      
9 B 344 328 21.24      

Unscaled Zero Point Vibrational Energy (zpe) 4581.2 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 4364.5 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 MP2=FULL/TZVP
ABC
0.45673 0.08957 0.07723

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.851
S2 0.000 1.671 -0.389
S3 0.000 -1.671 -0.389
H4 -1.324 1.752 -0.588
H5 1.324 -1.752 -0.588

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08042.08042.62522.6252
S22.08043.34131.34163.6750
S32.08043.34133.67501.3416
H42.62521.34163.67504.3919
H52.62523.67501.34164.3919

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.864 S1 S3 H5 97.864
S2 S1 S3 106.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/TZVP
 hartrees
Energy at 0K-1194.256366
Energy at 298.15K-1194.258781
HF Energy-1193.766028
Nuclear repulsion energy194.584587
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=FULL/TZVP
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' 2742 2613 9.34      
2 A' 904 861 5.36      
3 A' 504 480 0.66      
4 A' 344 328 21.05      
5 A' 210 200 0.12      
6 A" 2745 2615 0.13      
7 A" 894 852 5.84      
8 A" 505 481 26.15      
9 A" 318 303 12.04      

Unscaled Zero Point Vibrational Energy (zpe) 4582.8 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 4366.1 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=FULL/TZVP
ABC
0.45727 0.08954 0.07723

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.849 0.000
S2 -0.053 -0.392 1.670
S3 -0.053 -0.392 -1.670
H4 1.276 -0.523 1.799
H5 1.276 -0.523 -1.799

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08022.08022.62422.6242
S22.08023.33981.34203.7173
S32.08023.33983.71731.3420
H42.62421.34203.71733.5981
H52.62423.71731.34203.5981

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.805 S1 S3 H5 97.805
S2 S1 S3 106.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability