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 C2H4S (Thiirane)

using model chemistry: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-476.797727
Energy at 298.15K-476.802127
HF Energy-476.797727
Nuclear repulsion energy100.804627
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 B97D3/aug-cc-pVTZ
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 3066 3019 21.73      
2 A1 1463 1441 3.54      
3 A1 1123 1105 1.28      
4 A1 1019 1004 0.56      
5 A1 614 605 23.00      
6 A2 3144 3096 0.00      
7 A2 1170 1152 0.00      
8 A2 885 871 0.00      
9 B1 3159 3111 7.78      
10 B1 939 925 3.69      
11 B1 820 808 0.40      
12 B2 3067 3020 17.60      
13 B2 1444 1421 0.38      
14 B2 1047 1031 21.52      
15 B2 662 652 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 11810.3 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 11629.6 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 B97D3/aug-cc-pVTZ
ABC
0.73489 0.35626 0.26553

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.870
C2 0.000 0.741 -0.801
C3 0.000 -0.741 -0.801
H4 -0.916 1.256 -1.075
H5 0.916 1.256 -1.075
H6 0.916 -1.256 -1.075
H7 -0.916 -1.256 -1.075

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82761.82762.49022.49022.49022.4902
C21.82761.48281.08631.08632.21492.2149
C31.82761.48282.21492.21491.08631.0863
H42.49021.08632.21491.83263.10992.5125
H52.49021.08632.21491.83262.51253.1099
H62.49022.21491.08633.10992.51251.8326
H72.49022.21491.08632.51253.10991.8326

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.067 S1 C2 H4 115.042
S1 C2 H5 115.042 S1 C3 C2 66.067
S1 C3 H6 115.042 S1 C3 H7 115.042
C2 S1 C3 47.866 C2 C3 H6 118.291
C2 C3 H7 118.291 C3 C2 H4 118.291
C3 C2 H5 118.291 H4 C2 H5 115.023
H6 C3 H7 115.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.052      
2 C -0.294      
3 C -0.294      
4 H 0.160      
5 H 0.160      
6 H 0.160      
7 H 0.160      


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 -1.921 1.921
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.307 0.000 0.000
y 0.000 -24.543 0.000
z 0.000 0.000 -26.422
Traceless
 xyz
x -0.824 0.000 0.000
y 0.000 1.821 0.000
z 0.000 0.000 -0.997
Polar
3z2-r2-1.993
x2-y2-1.763
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.006 0.000 0.000
y 0.000 6.481 0.000
z 0.000 0.000 8.005


<r2> (average value of r2) Å2
<r2> 56.777
(<r2>)1/2 7.535