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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBE1PBE/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 PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-476.595219
Energy at 298.15K-476.599699
HF Energy-476.595219
Nuclear repulsion energy101.605952
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 PBE1PBE/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 3141 3019 14.67      
2 A1 1490 1432 2.74      
3 A1 1161 1116 1.32      
4 A1 1044 1003 1.13      
5 A1 666 640 23.69      
6 A2 3222 3097 0.00      
7 A2 1192 1146 0.00      
8 A2 903 868 0.00      
9 B1 3236 3110 3.73      
10 B1 962 925 3.78      
11 B1 834 801 0.57      
12 B2 3140 3017 12.62      
13 B2 1464 1407 1.19      
14 B2 1075 1033 25.52      
15 B2 712 684 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 12121.4 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 11648.6 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 PBE1PBE/cc-pVTZ
ABC
0.74112 0.36386 0.27041

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.860
C2 0.000 0.738 -0.791
C3 0.000 -0.738 -0.791
H4 -0.914 1.250 -1.067
H5 0.914 1.250 -1.067
H6 0.914 -1.250 -1.067
H7 -0.914 -1.250 -1.067

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80861.80862.47222.47222.47222.4722
C21.80861.47671.08311.08312.20532.2053
C31.80861.47672.20532.20531.08311.0831
H42.47221.08312.20531.82803.09622.4990
H52.47221.08312.20531.82802.49903.0962
H62.47222.20531.08313.09622.49901.8280
H72.47222.20531.08312.49903.09621.8280

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.905 S1 C2 H4 115.194
S1 C2 H5 115.194 S1 C3 C2 65.905
S1 C3 H6 115.194 S1 C3 H7 115.194
C2 S1 C3 48.190 C2 C3 H6 118.160
C2 C3 H7 118.160 C3 C2 H4 118.160
C3 C2 H5 118.160 H4 C2 H5 115.103
H6 C3 H7 115.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.149      
2 C -0.183      
3 C -0.183      
4 H 0.129      
5 H 0.129      
6 H 0.129      
7 H 0.129      


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 -1.940 1.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.987 0.000 0.000
y 0.000 -24.368 0.000
z 0.000 0.000 -26.230
Traceless
 xyz
x -0.688 0.000 0.000
y 0.000 1.740 0.000
z 0.000 0.000 -1.052
Polar
3z2-r2-2.104
x2-y2-1.619
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.632 0.000 0.000
y 0.000 5.647 0.000
z 0.000 0.000 7.025


<r2> (average value of r2) Å2
<r2> 55.974
(<r2>)1/2 7.482