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: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-475.552274
Energy at 298.15K 
HF Energy-475.552274
Nuclear repulsion energy78.894242
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 B1B95/6-31+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 3191 3052 29.11 189.56 0.13 0.23
2 A1 1859 1778 429.21 23.46 0.20 0.33
3 A1 1377 1317 0.77 16.47 0.62 0.77
4 A1 877 839 16.64 32.64 0.21 0.35
5 B1 727 696 104.43 5.34 0.75 0.86
6 B1 429 410 6.90 0.03 0.75 0.86
7 B2 3280 3138 5.30 102.69 0.75 0.86
8 B2 932 891 0.04 0.27 0.75 0.86
9 B2 361 345 3.00 0.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6515.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 6233.0 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 B1B95/6-31+G**
ABC
9.60196 0.18910 0.18544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.753
C2 0.000 0.000 -0.445
S3 0.000 0.000 1.112
H4 0.000 0.933 -2.304
H5 0.000 -0.933 -2.304

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.30782.86531.08351.0835
C21.30781.55752.07952.0795
S32.86531.55753.54103.5410
H41.08352.07953.54101.8666
H51.08352.07953.54101.8666

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 120.534
C2 C1 H5 120.534 H4 C1 H5 118.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C -0.145      
3 S -0.205      
4 H 0.192      
5 H 0.192      


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 -1.194 1.194
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.596 0.000 0.000
y 0.000 -23.261 0.000
z 0.000 0.000 -21.707
Traceless
 xyz
x -5.112 0.000 0.000
y 0.000 1.390 0.000
z 0.000 0.000 3.721
Polar
3z2-r27.442
x2-y2-4.335
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 3.522 0.000
z 0.000 0.000 11.272


<r2> (average value of r2) Å2
<r2> 66.883
(<r2>)1/2 8.178