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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: MP2=FULL/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=FULL/cc-pV(T+d)Z
 hartrees
Energy at 0K-1194.651980
Energy at 298.15K-1194.654434
HF Energy-1193.819129
Nuclear repulsion energy197.932481
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-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 2730 2589 0.13      
2 A 902 855 0.10      
3 A 521 494 0.37      
4 A 323 306 19.69      
5 A 214 203 0.00      
6 B 2730 2588 0.08      
7 B 888 842 10.37      
8 B 520 493 21.17      
9 B 346 328 15.17      

Unscaled Zero Point Vibrational Energy (zpe) 4586.6 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 4348.6 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 MP2=FULL/cc-pV(T+d)Z
ABC
0.47315 0.09277 0.08005

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.835
S2 0.000 1.641 -0.382
S3 0.000 -1.641 -0.382
H4 -1.319 1.732 -0.563
H5 1.319 -1.732 -0.563

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.04292.04292.58702.5870
S22.04293.28181.33443.6260
S32.04293.28183.62601.3344
H42.58701.33443.62604.3540
H52.58703.62601.33444.3540

picture of trisulfane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.784 S1 S3 H5 97.784
S2 S1 S3 106.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pV(T+d)Z
 hartrees
Energy at 0K-1194.651844
Energy at 298.15K-1194.654315
HF Energy-1193.818878
Nuclear repulsion energy198.039518
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-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' 2724 2583 0.79      
2 A' 905 858 3.63      
3 A' 522 495 0.43      
4 A' 347 329 15.05      
5 A' 214 203 0.06      
6 A" 2728 2586 0.11      
7 A" 891 845 7.76      
8 A" 522 494 22.98      
9 A" 334 317 9.05      

Unscaled Zero Point Vibrational Energy (zpe) 4593.0 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 4354.6 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 MP2=FULL/cc-pV(T+d)Z
ABC
0.47332 0.09290 0.08016

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.833 0.000
S2 -0.053 -0.385 1.639
S3 -0.053 -0.385 -1.639
H4 1.270 -0.510 1.769
H5 1.270 -0.510 -1.769

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.04182.04182.58502.5850
S22.04183.27791.33483.6577
S32.04183.27793.65771.3348
H42.58501.33483.65773.5379
H52.58503.65771.33483.5379

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.715 S1 S3 H5 97.715
S2 S1 S3 106.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability