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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2=FULL/6-31G*

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/6-31G*
 hartrees
Energy at 0K-1194.074494
Energy at 298.15K-1194.076923
HF Energy-1193.684261
Nuclear repulsion energy195.403681
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/6-31G*
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 2750 2591 0.79      
2 A 933 879 0.80      
3 A 508 478 1.08      
4 A 321 302 32.91      
5 A 214 201 0.04      
6 B 2750 2591 16.24      
7 B 918 865 14.24      
8 B 512 483 21.66      
9 B 354 333 23.73      

Unscaled Zero Point Vibrational Energy (zpe) 4629.4 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 4361.8 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/6-31G*
ABC
0.46856 0.08982 0.07774

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.839
S2 0.000 1.667 -0.383
S3 0.000 -1.667 -0.383
H4 -1.324 1.776 -0.593
H5 1.324 -1.776 -0.593

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06722.06722.63742.6374
S22.06723.33501.34473.6947
S32.06723.33503.69471.3447
H42.63741.34473.69474.4294
H52.63743.69471.34474.4294

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 99.046 S1 S3 H5 99.046
S2 S1 S3 107.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-1194.074017
Energy at 298.15K-1194.076458
HF Energy-1193.683752
Nuclear repulsion energy195.429408
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/6-31G*
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 2584 22.74      
2 A' 934 880 8.26      
3 A' 508 479 0.98      
4 A' 353 333 24.75      
5 A' 215 203 0.24      
6 A" 2745 2586 1.67      
7 A" 926 872 9.56      
8 A" 514 484 23.96      
9 A" 327 308 13.46      

Unscaled Zero Point Vibrational Energy (zpe) 4631.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 4364.1 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/6-31G*
ABC
0.47018 0.08974 0.07773

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.836 0.000
S2 -0.053 -0.385 1.667
S3 -0.053 -0.385 -1.667
H4 1.275 -0.527 1.826
H5 1.275 -0.527 -1.826

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06642.06642.63742.6374
S22.06643.33411.34543.7397
S32.06643.33413.73971.3454
H42.63741.34543.73973.6516
H52.63743.73971.34543.6516

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 99.063 S1 S3 H5 99.063
S2 S1 S3 107.562
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability