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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G2
 hartrees
Energy at 0K-474.958074
Energy at 298.15K-474.953423
HF Energy-474.355342
Nuclear repulsion energy79.250414
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 A1 3346 3153 17.64 150.77 0.12 0.21
2 A1 1958 1845 508.78 30.54 0.28 0.44
3 A1 1521 1433 5.94 21.95 0.53 0.69
4 A1 907 854 49.30 33.17 0.28 0.43
5 B1 899 847 96.00 3.17 0.75 0.86
6 B1 460 433 1.50 2.77 0.75 0.86
7 B2 3435 3236 1.84 101.52 0.75 0.86
8 B2 1044 983 0.01 1.20 0.75 0.86
9 B2 391 368 0.40 0.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6980.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 6576.9 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 MP2=FULL/6-31G*
ABC
9.60728 0.18758 0.18398

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.761
C2 0.000 0.000 -0.445
S3 0.000 0.000 1.116
H4 0.000 0.933 -2.314
H5 0.000 -0.933 -2.314

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31602.87741.08441.0844
C21.31601.56142.08862.0886
S32.87741.56143.55473.5547
H41.08442.08863.55471.8660
H51.08442.08863.55471.8660

picture of Thioketene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 180.000 C2 C1 H4 120.250
C2 C1 H5 120.250 H4 C1 H5 119.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability