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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-472.237226
Energy at 298.15K 
HF Energy-471.972502
Nuclear repulsion energy76.563431
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 3137 3040 12.03      
2 A1 1794 1738 175.32      
3 A1 1469 1424 0.47      
4 A1 757 734 12.33      
5 B1 848 822 88.74      
6 B1 392 380 3.62      
7 B2 3213 3114 0.50      
8 B2 1015 984 0.05      
9 B2 338 328 3.18      

Unscaled Zero Point Vibrational Energy (zpe) 6481.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 6281.8 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
9.62370 0.17760 0.17438

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 -1.799
C2 0.000 0.000 -0.485
S3 0.000 0.000 1.152
H4 0.000 0.932 -2.362
H5 0.000 -0.932 -2.362

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31412.95051.08901.0890
C21.31411.63642.09582.0958
S32.95051.63643.63493.6349
H41.08902.09583.63491.8644
H51.08902.09583.63491.8644

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 121.125
C2 C1 H5 121.125 H4 C1 H5 117.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability