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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: MP2=FULL/3-21G

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=FULL/3-21G
 hartrees
Energy at 0K-472.221490
Energy at 298.15K 
HF Energy-471.973279
Nuclear repulsion energy76.973873
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=FULL/3-21G
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 3183 3039 25.68 167.71 0.13 0.22
2 A1 1806 1724 238.01 3.07 0.65 0.79
3 A1 1481 1414 2.23 20.93 0.56 0.72
4 A1 801 764 4.42 31.79 0.34 0.50
5 B1 818 781 108.72 0.10 0.75 0.86
6 B1 399 381 3.74 0.92 0.75 0.86
7 B2 3262 3115 2.18 111.38 0.75 0.86
8 B2 1019 973 0.22 1.95 0.75 0.86
9 B2 346 330 4.41 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6557.6 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 6261.2 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=FULL/3-21G
ABC
9.67863 0.17954 0.17627

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.791
C2 0.000 0.000 -0.478
S3 0.000 0.000 1.145
H4 0.000 0.930 -2.352
H5 0.000 -0.930 -2.352

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31312.93551.08591.0859
C21.31311.62242.09232.0923
S32.93551.62243.61833.6183
H41.08592.09233.61831.8591
H51.08592.09233.61831.8591

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 121.128
C2 C1 H5 121.128 H4 C1 H5 117.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability