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 CS2 (Carbon disulfide)

using model chemistry: G2

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 G2
 hartrees
Energy at 0K-833.533552
Energy at 298.15K-833.529481
HF Energy-832.884082
Nuclear repulsion energy109.660462
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 HF/6-31G*
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 725 683 0.00 19.37 0.26 0.41
2 Σu 1583 1492 1505.53 0.00 0.00 0.00
3 Πu 445 420 0.00 0.00 0.00 0.00
3 Πu 445 420 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1599.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 1507.1 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=FULL/6-31G*
B
0.10817

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

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 1.561
S3 0.000 0.000 -1.561

Atom - Atom Distances (Å)
  C1 S2 S3
C11.56111.5611
S21.56113.1223
S31.56113.1223

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