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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBEultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-476.507555
Energy at 298.15K-476.511925
HF Energy-476.507555
Nuclear repulsion energy100.080130
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 PBEPBEultrafine/cc-pVDZ
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 3047 3029 12.85      
2 A1 1418 1410 3.42      
3 A1 1128 1121 2.25      
4 A1 995 989 0.34      
5 A1 641 637 20.79      
6 A2 3134 3116 0.00      
7 A2 1137 1131 0.00      
8 A2 854 849 0.00      
9 B1 3148 3129 6.49      
10 B1 912 906 5.37      
11 B1 801 796 0.49      
12 B2 3046 3029 13.83      
13 B2 1389 1381 0.47      
14 B2 1005 1000 25.10      
15 B2 662 658 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 11657.8 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 11590.2 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 PBEPBEultrafine/cc-pVDZ
ABC
0.72429 0.35150 0.26225

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.875
C2 0.000 0.745 -0.805
C3 0.000 -0.745 -0.805
H4 -0.929 1.268 -1.084
H5 0.929 1.268 -1.084
H6 0.929 -1.268 -1.084
H7 -0.929 -1.268 -1.084

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83811.83812.51212.51212.51212.5121
C21.83811.48961.10191.10192.23452.2345
C31.83811.48962.23452.23451.10191.1019
H42.51211.10192.23451.85733.14382.5365
H52.51211.10192.23451.85732.53653.1438
H62.51212.23451.10193.14382.53651.8573
H72.51212.23451.10192.53653.14381.8573

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.095 S1 C2 H4 115.090
S1 C2 H5 115.090 S1 C3 C2 66.095
S1 C3 H6 115.090 S1 C3 H7 115.090
C2 S1 C3 47.810 C2 C3 H6 118.361
C2 C3 H7 118.361 C3 C2 H4 118.361
C3 C2 H5 118.361 H4 C2 H5 114.859
H6 C3 H7 114.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.106      
2 C -0.091      
3 C -0.091      
4 H 0.072      
5 H 0.072      
6 H 0.072      
7 H 0.072      


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 -1.828 1.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.919 0.000 0.000
y 0.000 -24.384 0.000
z 0.000 0.000 -25.984
Traceless
 xyz
x -0.735 0.000 0.000
y 0.000 1.568 0.000
z 0.000 0.000 -0.833
Polar
3z2-r2-1.666
x2-y2-1.535
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.082 0.000 0.000
y 0.000 5.176 0.000
z 0.000 0.000 6.523


<r2> (average value of r2) Å2
<r2> 57.161
(<r2>)1/2 7.561