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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-474.964384
Energy at 298.15K-474.959767
HF Energy-474.355024
Nuclear repulsion energy79.138962
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 CBS-Q
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 3332 3332 19.43 148.75 0.12 0.21
2 A1 1957 1957 520.12 31.30 0.27 0.42
3 A1 1507 1507 5.11 21.05 0.53 0.69
4 A1 906 906 49.23 33.12 0.27 0.43
5 B1 872 872 88.16 3.00 0.75 0.86
6 B1 461 461 1.42 2.39 0.75 0.86
7 B2 3424 3424 2.07 99.73 0.75 0.86
8 B2 1031 1031 0.02 1.11 0.75 0.86
9 B2 392 392 0.33 0.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6940.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6940.3 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 CBS-Q
ABC
9.52191 0.18627 0.18269

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.747
C2 0.000 0.000 -0.449
S3 0.000 0.000 1.109
H4 0.000 0.930 -2.289
H5 0.000 -0.930 -2.289

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.29812.85601.07671.0767
C21.29811.55792.06202.0620
S32.85601.55793.52333.5233
H41.07672.06203.52331.8604
H51.07672.06203.52331.8604

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 120.238
C2 C1 H5 120.238 H4 C1 H5 119.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability