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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: CISD/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/cc-pV(T+d)Z
 hartrees
Energy at 0K-474.862744
Energy at 298.15K 
HF Energy-474.421583
Nuclear repulsion energy79.317787
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 CISD/cc-pV(T+d)Z
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 3252 3252 24.55      
2 A1 1886 1886 433.07      
3 A1 1444 1444 0.23      
4 A1 891 891 20.14      
5 B1 795 795 81.21      
6 B1 445 445 4.97      
7 B2 3343 3343 3.09      
8 B2 980 980 0.41      
9 B2 380 380 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 6707.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6707.8 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 CISD/cc-pV(T+d)Z
ABC
9.69161 0.19109 0.18739

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.745
C2 0.000 0.000 -0.443
S3 0.000 0.000 1.106
H4 0.000 0.929 -2.285
H5 0.000 -0.929 -2.285

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.30192.85161.07441.0744
C21.30191.54972.06282.0628
S32.85161.54973.51643.5164
H41.07442.06283.51641.8579
H51.07442.06283.51641.8579

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 120.164
C2 C1 H5 120.164 H4 C1 H5 119.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability