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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-1194.099113
Energy at 298.15K-1194.101477
HF Energy-1193.683652
Nuclear repulsion energy194.012981
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 MP4/6-31G*
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 2684 2563        
2 A 915 874        
3 A 489 467        
4 A 314 300        
5 A 208 198        
6 B 2684 2563        
7 B 901 860        
8 B 491 469        
9 B 345 329        

Unscaled Zero Point Vibrational Energy (zpe) 4515.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 4311.6 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 MP4/6-31G*
ABC
0.46019 0.08865 0.07666

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.847
S2 0.000 1.679 -0.387
S3 0.000 -1.679 -0.387
H4 -1.331 1.783 -0.591
H5 1.331 -1.783 -0.591

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08322.08322.64992.6499
S22.08323.35731.35113.7147
S32.08323.35733.71471.3511
H42.64991.35113.71474.4509
H52.64993.71471.35114.4509

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.755 S1 S3 H5 98.755
S2 S1 S3 107.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1194.098678
Energy at 298.15K-1194.101058
HF Energy-1193.683146
Nuclear repulsion energy194.058743
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 MP4/6-31G*
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' 2675 2554        
2 A' 917 875        
3 A' 490 468        
4 A' 346 330        
5 A' 209 200        
6 A" 2676 2555        
7 A" 908 867        
8 A" 493 471        
9 A" 321 306        

Unscaled Zero Point Vibrational Energy (zpe) 4517.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 4312.9 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 MP4/6-31G*
ABC
0.46215 0.08857 0.07666

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.843 0.000
S2 -0.053 -0.389 1.678
S3 -0.053 -0.389 -1.678
H4 1.282 -0.528 1.833
H5 1.282 -0.528 -1.833

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.08202.08202.65052.6505
S22.08203.35651.35203.7594
S32.08203.35653.75941.3520
H42.65051.35203.75943.6660
H52.65053.75941.35203.6660

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.813 S1 S3 H5 98.813
S2 S1 S3 107.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability