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: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-475.477348
Energy at 298.15K 
HF Energy-475.477348
Nuclear repulsion energy78.660556
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 B3PW91/6-31+G**
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 3173 3046 27.24      
2 A1 1841 1767 417.68      
3 A1 1373 1318 1.07      
4 A1 867 833 16.06      
5 B1 717 688 106.13      
6 B1 426 409 6.90      
7 B2 3260 3130 5.41      
8 B2 931 894 0.07      
9 B2 360 346 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 6473.6 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6215.3 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 B3PW91/6-31+G**
ABC
9.56671 0.18796 0.18434

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.758
C2 0.000 0.000 -0.447
S3 0.000 0.000 1.116
H4 0.000 0.935 -2.311
H5 0.000 -0.935 -2.311

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.31102.87371.08621.0862
C21.31101.56272.08522.0852
S32.87371.56273.55183.5518
H41.08622.08523.55181.8700
H51.08622.08523.55181.8700

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 120.593
C2 C1 H5 120.593 H4 C1 H5 118.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.020      
2 C -0.122      
3 S -0.292      
4 H 0.197      
5 H 0.197      


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 -1.219 1.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.622 0.000 0.000
y 0.000 -23.263 0.000
z 0.000 0.000 -21.645
Traceless
 xyz
x -5.169 0.000 0.000
y 0.000 1.371 0.000
z 0.000 0.000 3.797
Polar
3z2-r27.594
x2-y2-4.360
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.608 0.000 0.000
y 0.000 3.531 0.000
z 0.000 0.000 11.330


<r2> (average value of r2) Å2
<r2> 67.186
(<r2>)1/2 8.197