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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: QCISD(T)/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(T)/cc-pVDZ
 hartrees
Energy at 0K-474.816339
Energy at 298.15K 
HF Energy-474.379382
Nuclear repulsion energy77.516822
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(T)/cc-pVDZ
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 3167 3018        
2 A1 1801 1716        
3 A1 1380 1315        
4 A1 834 795        
5 B1 675 644        
6 B1 390 372        
7 B2 3269 3116        
8 B2 936 892        
9 B2 346 329        

Unscaled Zero Point Vibrational Energy (zpe) 6399.1 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 6099.0 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(T)/cc-pVDZ
ABC
9.31544 0.18241 0.17891

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.787
C2 0.000 0.000 -0.454
S3 0.000 0.000 1.132
H4 0.000 0.948 -2.338
H5 0.000 -0.948 -2.338

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.33302.91891.09641.0964
C21.33301.58592.10952.1095
S32.91891.58593.59763.5976
H41.09642.10953.59761.8950
H51.09642.10953.59761.8950

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 120.210
C2 C1 H5 120.210 H4 C1 H5 119.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability