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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2/aug-cc-pV(T+d)Z

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-pV(T+d)Z
 hartrees
Energy at 0K-1194.362188
Energy at 298.15K-1194.364813
HF Energy-1193.820955
Nuclear repulsion energy197.077010
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-pV(T+d)Z
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 2725 2725 0.14      
2 A 897 897 0.05      
3 A 511 511 0.25      
4 A 315 315 17.51      
5 A 211 211 0.01      
6 B 2724 2724 0.42      
7 B 883 883 10.83      
8 B 509 509 20.88      
9 B 339 339 13.31      

Unscaled Zero Point Vibrational Energy (zpe) 4557.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4557.4 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/aug-cc-pV(T+d)Z
ABC
0.46948 0.09193 0.07934

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pV(T+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.838
S2 0.000 1.648 -0.384
S3 0.000 -1.648 -0.384
H4 -1.324 1.746 -0.556
H5 1.324 -1.746 -0.556

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05182.05182.59712.5971
S22.05183.29631.33873.6476
S32.05183.29633.64761.3387
H42.59711.33873.64764.3829
H52.59713.64761.33874.3829

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.771 S1 S3 H5 97.771
S2 S1 S3 106.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-1194.362169
Energy at 298.15K-1194.364816
HF Energy-1193.820816
Nuclear repulsion energy197.172538
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-pV(T+d)Z
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' 2720 2720 0.31      
2 A' 899 899 3.52      
3 A' 511 511 0.34      
4 A' 340 340 13.16      
5 A' 211 211 0.04      
6 A" 2724 2724 0.03      
7 A" 887 887 7.92      
8 A" 510 510 22.21      
9 A" 330 330 7.99      

Unscaled Zero Point Vibrational Energy (zpe) 4566.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4566.2 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-pV(T+d)Z
ABC
0.46932 0.09207 0.07944

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.837 0.000
S2 -0.053 -0.387 1.646
S3 -0.053 -0.387 -1.646
H4 1.274 -0.508 1.780
H5 1.274 -0.508 -1.780

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.05102.05102.59532.5953
S22.05103.29261.33903.6761
S32.05103.29263.67611.3390
H42.59531.33903.67613.5597
H52.59533.67611.33903.5597

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.706 S1 S3 H5 97.706
S2 S1 S3 106.775
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability