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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-474.857281
Energy at 298.15K 
HF Energy-474.371916
Nuclear repulsion energy78.641955
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/6-31G(2df,p)
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 3209 3040 23.65      
2 A1 1854 1756 296.61      
3 A1 1408 1334 0.02      
4 A1 852 807 17.47      
5 B1 752 713 69.22      
6 B1 429 406 2.20      
7 B2 3303 3129 3.32      
8 B2 960 910 0.11      
9 B2 368 349 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 6566.8 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 6221.4 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/6-31G(2df,p)
ABC
9.59828 0.18780 0.18420

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.759
C2 0.000 0.000 -0.449
S3 0.000 0.000 1.116
H4 0.000 0.933 -2.306
H5 0.000 -0.933 -2.306

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31012.87551.08201.0820
C21.31011.56532.07872.0787
S32.87551.56533.54773.5477
H41.08202.07873.54771.8669
H51.08202.07873.54771.8669

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 120.378
C2 C1 H5 120.378 H4 C1 H5 119.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability