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All results from a given calculation for CH2CS (Thioketene)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-21.955035
Energy at 298.15K 
HF Energy-21.955035
Nuclear repulsion energy26.726012
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 HF/CEP-121G
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 3288 3000 21.89 171.59 0.15 0.26
2 A1 1881 1717 449.00 40.36 0.21 0.34
3 A1 1505 1373 0.14 25.53 0.53 0.69
4 A1 814 743 44.48 35.95 0.25 0.40
5 B1 994 907 125.99 6.83 0.75 0.86
6 B1 425 388 5.06 1.57 0.75 0.86
7 B2 3395 3098 0.71 95.81 0.75 0.86
8 B2 1053 961 0.03 3.02 0.75 0.86
9 B2 372 339 2.10 2.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6863.4 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6262.9 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 HF/CEP-121G
ABC
9.74383 0.18158 0.17825

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.783
C2 0.000 0.000 -0.475
S3 0.000 0.000 1.138
H4 0.000 0.926 -2.330
H5 0.000 -0.926 -2.330

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.30852.92121.07561.0756
C21.30851.61272.07342.0734
S32.92121.61273.58923.5892
H41.07562.07343.58921.8529
H51.07562.07343.58921.8529

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 120.533
C2 C1 H5 120.533 H4 C1 H5 118.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.457      
2 C 0.068      
3 S -0.040      
4 H 0.214      
5 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.412 2.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.589 0.000 0.000
y 0.000 -23.230 0.000
z 0.000 0.000 -21.688
Traceless
 xyz
x -5.130 0.000 0.000
y 0.000 1.408 0.000
z 0.000 0.000 3.722
Polar
3z2-r27.444
x2-y2-4.359
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.552 0.000 0.000
y 0.000 3.059 0.000
z 0.000 0.000 11.310


<r2> (average value of r2) Å2
<r2> 49.057
(<r2>)1/2 7.004