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 H2CS (Thioformaldehyde)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-437.217108
Energy at 298.15K-437.218472
HF Energy-437.217108
Nuclear repulsion energy44.339884
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 PBEPBE/6-31G*
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 3009 2966 33.53      
2 A1 1478 1457 9.61      
3 A1 1069 1054 12.56      
4 B1 991 977 49.46      
5 B2 3090 3046 12.87      
6 B2 992 978 7.92      

Unscaled Zero Point Vibrational Energy (zpe) 5314.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 5238.5 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 PBEPBE/6-31G*
ABC
9.64908 0.57907 0.54628

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.591
C2 0.000 0.000 -1.035
H3 0.000 0.931 -1.625
H4 0.000 -0.931 -1.625

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.62572.40352.4035
C21.62571.10231.1023
H32.40351.10231.8620
H42.40351.10231.8620

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 122.374 S1 C2 H4 122.374
H3 C2 H4 115.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.014      
2 C -0.389      
3 H 0.202      
4 H 0.202      


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 -1.831 1.831
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.415 0.000 0.000
y 0.000 -20.142 0.000
z 0.000 0.000 -17.034
Traceless
 xyz
x -0.827 0.000 0.000
y 0.000 -1.918 0.000
z 0.000 0.000 2.745
Polar
3z2-r25.489
x2-y20.728
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.959 0.000 0.000
y 0.000 2.864 0.000
z 0.000 0.000 5.886


<r2> (average value of r2) Å2
<r2> 30.807
(<r2>)1/2 5.550