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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2/6-31+G**

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 MP2/6-31+G**
 hartrees
Energy at 0K-1194.069941
Energy at 298.15K-1194.072341
HF Energy-1193.694331
Nuclear repulsion energy195.409898
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 MP2/6-31+G**
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 2789 2623 0.39      
2 A 923 869 0.93      
3 A 505 475 0.67      
4 A 305 287 29.33      
5 A 212 199 0.00      
6 B 2789 2623 6.94      
7 B 909 855 17.59      
8 B 511 480 23.10      
9 B 340 320 22.41      

Unscaled Zero Point Vibrational Energy (zpe) 4641.4 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 4365.7 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 MP2/6-31+G**
ABC
0.46779 0.08981 0.07769

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.840
S2 0.000 1.668 -0.384
S3 0.000 -1.668 -0.384
H4 -1.317 1.769 -0.582
H5 1.317 -1.769 -0.582

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06892.06892.62452.6245
S22.06893.33591.33553.6862
S32.06893.33593.68621.3355
H42.62451.33553.68624.4111
H52.62453.68621.33554.4111

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.576 S1 S3 H5 98.576
S2 S1 S3 107.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-1194.069578
Energy at 298.15K-1194.071994
HF Energy-1193.693821
Nuclear repulsion energy195.452008
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 MP2/6-31+G**
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' 2782 2617 11.71      
2 A' 925 870 9.13      
3 A' 506 476 0.62      
4 A' 340 320 23.46      
5 A' 213 200 0.16      
6 A" 2785 2619 0.34      
7 A" 917 863 11.01      
8 A" 512 482 25.12      
9 A" 314 296 13.39      

Unscaled Zero Point Vibrational Energy (zpe) 4646.6 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 4370.6 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 MP2/6-31+G**
ABC
0.46877 0.08980 0.07771

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.838 0.000
S2 -0.053 -0.386 1.667
S3 -0.053 -0.386 -1.667
H4 1.268 -0.525 1.812
H5 1.268 -0.525 -1.812

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06822.06822.62402.6240
S22.06823.33441.33603.7240
S32.06823.33443.72401.3360
H42.62401.33603.72403.6239
H52.62403.72401.33603.6239

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.564 S1 S3 H5 98.564
S2 S1 S3 107.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability