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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-1194.354623
Energy at 298.15K-1194.357017
HF Energy-1193.814180
Nuclear repulsion energy196.229391
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/aug-cc-pVTZ
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 2722 2594 0.13      
2 A 890 848 0.02      
3 A 509 485 0.23      
4 A 310 295 17.81      
5 A 208 199 0.01      
6 B 2721 2593 0.31      
7 B 878 836 9.40      
8 B 506 483 21.20      
9 B 334 319 13.57      

Unscaled Zero Point Vibrational Energy (zpe) 4539.0 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 4325.2 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/aug-cc-pVTZ
ABC
0.46249 0.09134 0.07872

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.845
S2 0.000 1.654 -0.387
S3 0.000 -1.654 -0.387
H4 -1.327 1.748 -0.558
H5 1.327 -1.748 -0.558

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06212.06212.60482.6048
S22.06213.30721.34153.6552
S32.06213.30723.65521.3415
H42.60481.34153.65524.3894
H52.60483.65521.34154.3894

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.616 S1 S3 H5 97.616
S2 S1 S3 106.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-1194.354575
Energy at 298.15K-1194.356989
HF Energy-1193.814011
Nuclear repulsion energy196.320364
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/aug-cc-pVTZ
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' 2717 2589 0.29      
2 A' 893 851 3.39      
3 A' 509 485 0.32      
4 A' 336 320 13.42      
5 A' 209 199 0.04      
6 A" 2720 2592 0.01      
7 A" 881 839 6.62      
8 A" 508 484 22.47      
9 A" 324 309 8.29      

Unscaled Zero Point Vibrational Energy (zpe) 4547.4 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 4333.2 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/aug-cc-pVTZ
ABC
0.46243 0.09147 0.07881

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.843 0.000
S2 -0.053 -0.390 1.652
S3 -0.053 -0.390 -1.652
H4 1.277 -0.511 1.781
H5 1.277 -0.511 -1.781

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06132.06132.60272.6027
S22.06133.30371.34183.6833
S32.06133.30373.68331.3418
H42.60271.34183.68333.5617
H52.60273.68331.34183.5617

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.531 S1 S3 H5 97.531
S2 S1 S3 106.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability