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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-476.507552
Energy at 298.15K-476.511921
HF Energy-476.507552
Nuclear repulsion energy100.051349
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/cc-pVDZ
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 3047 3029 12.75      
2 A1 1419 1410 3.37      
3 A1 1129 1122 2.31      
4 A1 995 989 0.34      
5 A1 640 637 20.81      
6 A2 3134 3115 0.00      
7 A2 1138 1131 0.00      
8 A2 853 848 0.00      
9 B1 3148 3129 6.40      
10 B1 912 907 5.35      
11 B1 801 797 0.48      
12 B2 3046 3028 13.76      
13 B2 1389 1381 0.48      
14 B2 1005 999 25.05      
15 B2 661 657 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 11657.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 11589.6 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 PBEPBE/cc-pVDZ
ABC
0.72464 0.35104 0.26205

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.876
C2 0.000 0.745 -0.806
C3 0.000 -0.745 -0.806
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
S11.83911.83912.51252.51252.51252.5125
C21.83911.48901.10201.10202.23402.2340
C31.83911.48902.23402.23401.10201.1020
H42.51251.10202.23401.85783.14382.5361
H52.51251.10202.23401.85782.53613.1438
H62.51252.23401.10203.14382.53611.8578
H72.51252.23401.10202.53613.14381.8578

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.121 S1 C2 H4 115.040
S1 C2 H5 115.040 S1 C3 C2 66.121
S1 C3 H6 115.040 S1 C3 H7 115.040
C2 S1 C3 47.758 C2 C3 H6 118.365
C2 C3 H7 118.365 C3 C2 H4 118.365
C3 C2 H5 118.365 H4 C2 H5 114.899
H6 C3 H7 114.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/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 -1.832 1.832
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.918 0.000 0.000
y 0.000 -24.386 0.000
z 0.000 0.000 -25.983
Traceless
 xyz
x -0.733 0.000 0.000
y 0.000 1.564 0.000
z 0.000 0.000 -0.831
Polar
3z2-r2-1.662
x2-y2-1.532
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.083 0.000 0.000
y 0.000 5.174 0.000
z 0.000 0.000 6.528


<r2> (average value of r2) Å2
<r2> 57.186
(<r2>)1/2 7.562