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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: QCISD/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-474.924269
Energy at 298.15K 
HF Energy-474.418461
Nuclear repulsion energy78.632114
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-pVTZ
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 3184 3042 19.04      
2 A1 1830 1748 339.62      
3 A1 1410 1347 0.00      
4 A1 852 814 15.41      
5 B1 750 716 76.12      
6 B1 419 401 4.31      
7 B2 3275 3129 2.22      
8 B2 954 912 0.41      
9 B2 361 345 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 6517.0 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 6227.0 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-pVTZ
ABC
9.59918 0.18771 0.18411

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.760
C2 0.000 0.000 -0.449
S3 0.000 0.000 1.117
H4 0.000 0.933 -2.303
H5 0.000 -0.933 -2.303

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31122.87691.07981.0798
C21.31121.56582.07582.0758
S32.87691.56583.54503.5450
H41.07982.07583.54501.8668
H51.07982.07583.54501.8668

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 120.185
C2 C1 H5 120.185 H4 C1 H5 119.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability