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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-476.550872
Energy at 298.15K-476.555266
HF Energy-476.550872
Nuclear repulsion energy100.681620
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-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 3052 3030 16.82      
2 A1 1440 1430 3.38      
3 A1 1119 1112 1.34      
4 A1 1005 998 1.01      
5 A1 634 629 20.11      
6 A2 3128 3107 0.00      
7 A2 1152 1144 0.00      
8 A2 870 864 0.00      
9 B1 3143 3121 6.06      
10 B1 925 919 4.24      
11 B1 809 803 0.42      
12 B2 3052 3031 15.67      
13 B2 1420 1410 0.71      
14 B2 1027 1020 25.01      
15 B2 668 664 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 11721.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 11640.8 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 PBEPBE/cc-pVTZ
ABC
0.73125 0.35608 0.26518

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 0.743 -0.800
C3 0.000 -0.743 -0.800
H4 -0.920 1.259 -1.077
H5 0.920 1.259 -1.077
H6 0.920 -1.259 -1.077
H7 -0.920 -1.259 -1.077

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82781.82782.49452.49452.49452.4945
C21.82781.48591.09071.09072.22092.2209
C31.82781.48592.22092.22091.09071.0907
H42.49451.09072.22091.83993.11922.5187
H52.49451.09072.22091.83992.51873.1192
H62.49452.22091.09073.11922.51871.8399
H72.49452.22091.09072.51873.11921.8399

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.016 S1 C2 H4 115.110
S1 C2 H5 115.110 S1 C3 C2 66.016
S1 C3 H6 115.110 S1 C3 H7 115.110
C2 S1 C3 47.967 C2 C3 H6 118.259
C2 C3 H7 118.259 C3 C2 H4 118.259
C3 C2 H5 118.259 H4 C2 H5 115.013
H6 C3 H7 115.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.141      
2 C -0.168      
3 C -0.168      
4 H 0.119      
5 H 0.119      
6 H 0.119      
7 H 0.119      


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 -1.882 1.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.161 0.000 0.000
y 0.000 -24.566 0.000
z 0.000 0.000 -26.322
Traceless
 xyz
x -0.717 0.000 0.000
y 0.000 1.675 0.000
z 0.000 0.000 -0.958
Polar
3z2-r2-1.917
x2-y2-1.595
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.775 0.000 0.000
y 0.000 5.814 0.000
z 0.000 0.000 7.225


<r2> (average value of r2) Å2
<r2> 56.823
(<r2>)1/2 7.538