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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: CCSD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS cis 1A'

Conformer 1 (C2 trans)

Jump to S1C2
Vibrational Frequencies calculated at CCSD/TZVP
Rotational Constants (cm-1) from geometry optimized at CCSD/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD/TZVP
 hartrees
Energy at 0K-1194.215001
Energy at 298.15K-1194.217372
HF Energy-1193.765791
Nuclear repulsion energy193.518566
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 CCSD/TZVP
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' 2705 2582 16.92      
2 A' 906 865 5.59      
3 A' 492 469 0.50      
4 A' 333 318 19.19      
5 A' 208 198 0.11      
6 A" 2707 2583 0.31      
7 A" 896 855 6.19      
8 A" 498 475 19.75      
9 A" 306 292 11.09      

Unscaled Zero Point Vibrational Energy (zpe) 4525.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4318.8 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 CCSD/TZVP
ABC
0.44829 0.08884 0.07646

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.858 0.000
S2 -0.053 -0.396 1.677
S3 -0.053 -0.396 -1.677
H4 1.279 -0.524 1.806
H5 1.279 -0.524 -1.806

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.09362.09362.63522.6352
S22.09363.35311.34473.7306
S32.09363.35313.73061.3447
H42.63521.34473.73063.6112
H52.63523.73061.34473.6112

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 97.682 S1 S3 H5 97.682
S2 S1 S3 106.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability