return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for SCSe (Carbon sulfide selenide)

using model chemistry: CCSD(T)/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CCSD(T)/cc-pVQZ
 hartrees
Energy at 0K-2835.978551
Energy at 298.15K-2835.976303
HF Energy-2835.304745
Nuclear repulsion energy184.762624
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)/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 1466 1422        
2 Σ 518 503        
3 Π 364 353        
3 Π 364 353        

Unscaled Zero Point Vibrational Energy (zpe) 1355.8 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 1314.8 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(T)/cc-pVQZ
B
0.06797

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.585
S2 0.000 0.000 -2.142
Se3 0.000 0.000 1.111

Atom - Atom Distances (Å)
  C1 S2 Se3
C11.55651.6965
S21.55653.2530
Se31.69653.2530

picture of Carbon sulfide selenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 C1 Se3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability