return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CS (Thioketene)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-475.103711
Energy at 298.15K 
HF Energy-474.413937
Nuclear repulsion energy79.029896
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/6-311+G(3df,2p)
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 3194 3011 31.12 179.88 0.10 0.18
2 A1 1823 1718 368.16 16.59 0.20 0.33
3 A1 1386 1306 1.43 12.58 0.61 0.75
4 A1 874 824 4.20 35.52 0.15 0.26
5 B1 676 637 81.80 6.48 0.75 0.86
6 B1 436 411 7.23 0.00 0.75 0.86
7 B2 3294 3106 5.90 83.69 0.75 0.86
8 B2 932 879 0.53 0.02 0.75 0.86
9 B2 362 341 2.68 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6487.8 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 6116.0 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 MP2=FULL/6-311+G(3df,2p)
ABC
9.60961 0.18963 0.18596

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.754
C2 0.000 0.000 -0.441
S3 0.000 0.000 1.110
H4 0.000 0.933 -2.296
H5 0.000 -0.933 -2.296

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31272.86361.07921.0792
C21.31271.55082.07672.0767
S32.86361.55083.53163.5316
H41.07922.07673.53161.8658
H51.07922.07673.53161.8658

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 120.184
C2 C1 H5 120.184 H4 C1 H5 119.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability