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All results from a given calculation for HSSSH (trisulfane)

using model chemistry: CCSD/6-31G(2df,p)

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/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at CCSD/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-1194.265156
Energy at 298.15K-1194.267575
HF Energy-1193.722237
Nuclear repulsion energy195.565341
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/6-31G(2df,p)
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' 2709 2562 1.85      
2 A' 913 863 4.03      
3 A' 510 482 0.33      
4 A' 336 317 17.37      
5 A' 211 200 0.05      
6 A" 2711 2563 0.14      
7 A" 900 851 6.51      
8 A" 518 490 18.51      
9 A" 320 302 9.76      

Unscaled Zero Point Vibrational Energy (zpe) 4563.6 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 4314.9 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 CCSD/6-31G(2df,p)
ABC
0.46079 0.09060 0.07812

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.053 0.845 0.000
S2 -0.053 -0.390 1.659
S3 -0.053 -0.390 -1.659
H4 1.277 -0.515 1.801
H5 1.277 -0.515 -1.801

Atom - Atom Distances (Å)
  S1 S2 S3 H4 H5
S12.06882.06882.61972.6197
S22.06883.31901.34333.7096
S32.06883.31903.70961.3433
H42.61971.34333.70963.6025
H52.61973.70961.34333.6025

picture of trisulfane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 H4 98.053 S1 S3 H5 98.053
S2 S1 S3 106.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability