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: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-432.496332
Energy at 298.15K-432.497667
HF Energy-432.496332
Nuclear repulsion energy44.168377
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 BLYP/STO-3G
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 3135 2900 2.77      
2 A1 1645 1522 5.25      
3 A1 1155 1068 4.78      
4 B1 978 905 19.68      
5 B2 3253 3010 24.95      
6 B2 1072 992 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 5619.1 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 5198.8 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 BLYP/STO-3G
ABC
9.77749 0.57394 0.54212

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.594
C2 0.000 0.000 -1.032
H3 0.000 0.925 -1.659
H4 0.000 -0.925 -1.659

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.62572.43562.4356
C21.62571.11761.1176
H32.43561.11761.8497
H42.43561.11761.8497

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 124.153 S1 C2 H4 124.153
H3 C2 H4 111.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.122      
2 C -0.252      
3 H 0.065      
4 H 0.065      


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 -0.554 0.554
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.460 0.000 0.000
y 0.000 -17.398 0.000
z 0.000 0.000 -16.527
Traceless
 xyz
x 0.502 0.000 0.000
y 0.000 -0.905 0.000
z 0.000 0.000 0.402
Polar
3z2-r20.805
x2-y20.938
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.729 0.000 0.000
y 0.000 0.934 0.000
z 0.000 0.000 3.177


<r2> (average value of r2) Å2
<r2> 29.739
(<r2>)1/2 5.453