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All results from a given calculation for SiS2 (Silicon disulfide)

using model chemistry: CCSD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-1084.705468
Energy at 298.15K-1084.705249
HF Energy-1084.086655
Nuclear repulsion energy157.786210
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(T)=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 520 498        
2 Σu 935 896        
3 Πu 196 188        
3 Πu 196 188        

Unscaled Zero Point Vibrational Energy (zpe) 923.5 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 884.7 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(T)=FULL/cc-pVTZ
B
0.07065

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.000
S2 0.000 0.000 1.932
S3 0.000 0.000 -1.932

Atom - Atom Distances (Å)
  Si1 S2 S3
Si11.93171.9317
S21.93173.8633
S31.93173.8633

picture of Silicon disulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 Si1 S3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability