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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-472.413659
Energy at 298.15K 
HF Energy-472.084657
Nuclear repulsion energy78.159963
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 QCISD/3-21G*
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 3141 3019 12.12      
2 A1 1818 1747 222.14      
3 A1 1476 1419 0.56      
4 A1 840 807 14.02      
5 B1 831 798 95.65      
6 B1 383 368 2.22      
7 B2 3218 3093 0.27      
8 B2 1035 994 0.20      
9 B2 345 332 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 6543.3 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 6288.8 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 QCISD/3-21G*
ABC
9.62981 0.18536 0.18186

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.769
C2 0.000 0.000 -0.450
S3 0.000 0.000 1.124
H4 0.000 0.932 -2.332
H5 0.000 -0.932 -2.332

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31932.89281.08861.0886
C21.31931.57352.10002.1000
S32.89281.57353.57883.5788
H41.08862.10003.57881.8639
H51.08862.10003.57881.8639

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 121.119
C2 C1 H5 121.119 H4 C1 H5 117.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability