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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-86.922951
Energy at 298.15K 
HF Energy-86.695053
Nuclear repulsion energy43.156707
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 MP2/LANL2DZ
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 3146 3030 15.00 171.80 0.12 0.21
2 A1 1754 1689 280.69 0.86 0.33 0.49
3 A1 1442 1388 4.29 13.92 0.55 0.71
4 A1 799 769 3.31 30.17 0.38 0.55
5 B1 800 771 135.70 3.34 0.75 0.86
6 B1 381 367 7.79 0.04 0.75 0.86
7 B2 3251 3131 0.23 95.56 0.75 0.86
8 B2 992 955 0.00 0.60 0.75 0.86
9 B2 354 341 7.04 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6459.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 6221.1 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 MP2/LANL2DZ
ABC
9.44819 0.17641 0.17318

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.813
C2 0.000 0.000 -0.470
S3 0.000 0.000 1.153
H4 0.000 0.941 -2.373
H5 0.000 -0.941 -2.373

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.34382.96611.09451.0945
C21.34381.62232.12292.1229
S32.96611.62233.64883.6488
H41.09452.12293.64881.8817
H51.09452.12293.64881.8817

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 120.730
C2 C1 H5 120.730 H4 C1 H5 118.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability