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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: QCISD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-474.798311
Energy at 298.15K 
HF Energy-474.380051
Nuclear repulsion energy77.751355
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3187 3057 15.27      
2 A1 1831 1756 279.79      
3 A1 1393 1336 0.00      
4 A1 846 812 13.21      
5 B1 716 687 74.17      
6 B1 403 387 1.86      
7 B2 3289 3155 1.54      
8 B2 949 910 0.09      
9 B2 353 338 1.47      

Unscaled Zero Point Vibrational Energy (zpe) 6482.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6219.3 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 QCISD/cc-pVDZ
ABC
9.34138 0.18358 0.18004

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.780
C2 0.000 0.000 -0.453
S3 0.000 0.000 1.129
H4 0.000 0.946 -2.331
H5 0.000 -0.946 -2.331

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.32762.90921.09481.0948
C21.32761.58162.10312.1031
S32.90921.58163.58693.5869
H41.09482.10313.58691.8924
H51.09482.10313.58691.8924

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 120.196
C2 C1 H5 120.196 H4 C1 H5 119.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability