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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2=FULL/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=FULL/cc-pVTZ
 hartrees
Energy at 0K-1194.448339
Energy at 298.15K-1194.450765
HF Energy-1193.812413
Nuclear repulsion energy196.830402
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/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 2730 2592 0.12      
2 A 894 849 0.04      
3 A 517 491 0.36      
4 A 317 301 20.30      
5 A 211 200 0.00      
6 B 2729 2591 0.06      
7 B 882 837 8.89      
8 B 516 490 21.49      
9 B 341 324 15.64      

Unscaled Zero Point Vibrational Energy (zpe) 4567.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 4336.5 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/cc-pVTZ
ABC
0.46497 0.09193 0.07921

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.843
S2 0.000 1.649 -0.386
S3 0.000 -1.649 -0.386
H4 -1.322 1.736 -0.566
H5 1.322 -1.736 -0.566

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05592.05592.59712.5971
S22.05593.29711.33753.6378
S32.05593.29713.63781.3375
H42.59711.33753.63784.3640
H52.59713.63781.33754.3640

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.622 S1 S3 H5 97.622
S2 S1 S3 106.615
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-1194.448166
Energy at 298.15K-1194.450608
HF Energy-1193.812136
Nuclear repulsion energy196.898089
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/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' 2724 2586 0.90      
2 A' 897 852 3.53      
3 A' 518 491 0.40      
4 A' 342 324 15.52      
5 A' 211 201 0.05      
6 A" 2727 2589 0.07      
7 A" 884 840 6.31      
8 A" 517 491 23.28      
9 A" 327 310 9.38      

Unscaled Zero Point Vibrational Energy (zpe) 4572.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 4341.4 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/cc-pVTZ
ABC
0.46485 0.09203 0.07928

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.841 0.000
S2 -0.053 -0.389 1.647
S3 -0.053 -0.389 -1.647
H4 1.273 -0.513 1.772
H5 1.273 -0.513 -1.772

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05532.05532.59482.5948
S22.05533.29381.33783.6696
S32.05533.29383.66961.3378
H42.59481.33783.66963.5448
H52.59483.66961.33783.5448

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.509 S1 S3 H5 97.509
S2 S1 S3 106.506
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability