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: mPW1PW91/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-475.598804
Energy at 298.15K 
HF Energy-475.598804
Nuclear repulsion energy79.218446
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 mPW1PW91/aug-cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3168 3168 29.18      
2 A1 1845 1845 438.06      
3 A1 1373 1373 0.97      
4 A1 877 877 15.10      
5 B1 722 722 78.11      
6 B1 433 433 7.99      
7 B2 3252 3252 5.33      
8 B2 927 927 0.29      
9 B2 367 367 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 6481.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6481.2 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 mPW1PW91/aug-cc-pV(T+d)Z
ABC
9.63774 0.19073 0.18703

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.745
C2 0.000 0.000 -0.443
S3 0.000 0.000 1.108
H4 0.000 0.932 -2.295
H5 0.000 -0.932 -2.295

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5
C11.30202.85271.08151.0815
C21.30201.55072.07272.0727
S32.85271.55073.52753.5275
H41.08152.07273.52751.8631
H51.08152.07273.52751.8631

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 120.537
C2 C1 H5 120.537 H4 C1 H5 118.927
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.604      
2 C 0.271      
3 S -0.238      
4 H 0.285      
5 H 0.285      


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 -1.105 1.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.401 0.000 0.000
y 0.000 -23.410 0.000
z 0.000 0.000 -21.420
Traceless
 xyz
x -4.986 0.000 0.000
y 0.000 1.000 0.000
z 0.000 0.000 3.985
Polar
3z2-r27.971
x2-y2-3.991
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.997 0.000 0.000
y 0.000 4.915 0.000
z 0.000 0.000 11.466


<r2> (average value of r2) Å2
<r2> 66.384
(<r2>)1/2 8.148