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: B2PLYP=FULLultrafine/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/STO-3G
 hartrees
Energy at 0K-469.892815
Energy at 298.15K 
HF Energy-469.828827
Nuclear repulsion energy78.129928
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 B2PLYP=FULLultrafine/STO-3G
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 3416 3416 65.31 82.34 0.13 0.23
2 A1 1986 1986 143.03 0.41 0.06 0.11
3 A1 1556 1556 0.02 24.27 0.66 0.80
4 A1 900 900 2.43 20.08 0.31 0.47
5 B1 753 753 51.89 0.01 0.75 0.86
6 B1 408 408 0.47 0.64 0.75 0.86
7 B2 3556 3556 4.45 68.09 0.75 0.86
8 B2 1047 1047 0.53 0.35 0.75 0.86
9 B2 347 347 0.26 0.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6984.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6984.5 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 B2PLYP=FULLultrafine/STO-3G
ABC
9.57373 0.18522 0.18171

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.771
C2 0.000 0.000 -0.445
S3 0.000 0.000 1.123
H4 0.000 0.935 -2.340
H5 0.000 -0.935 -2.340

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.32622.89411.09421.0942
C21.32621.56792.11312.1131
S32.89411.56793.58703.5870
H41.09422.11313.58701.8693
H51.09422.11313.58701.8693

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 121.330
C2 C1 H5 121.330 H4 C1 H5 117.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability