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All results from a given calculation for CS2 (Carbon disulfide)

using model chemistry: MP2/LANL2DZ

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 MP2/LANL2DZ
 hartrees
Energy at 0K-57.809375
Energy at 298.15K-57.808845
HF Energy-57.594566
Nuclear repulsion energy29.468687
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/LANL2DZ
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 613 591 0.00 57.00 0.38 0.55
2 Σu 1509 1454 460.08 0.00 0.00 0.00
3 Πu 357 343 7.20 0.00 0.00 0.00
3 Πu 357 343 7.20 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1417.9 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 1365.5 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/LANL2DZ
B
0.10093

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
S2 0.000 0.000 1.616
S3 0.000 0.000 -1.616

Atom - Atom Distances (Å)
  C1 S2 S3
C11.61621.6162
S21.61623.2323
S31.61623.2323

picture of Carbon disulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 C1 S3 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability