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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-476.518319
Energy at 298.15K-476.522694
HF Energy-476.518319
Nuclear repulsion energy100.023139
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/daug-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 3057 3057 17.72      
2 A1 1428 1428 2.56      
3 A1 1125 1125 1.48      
4 A1 993 993 0.74      
5 A1 633 633 21.64      
6 A2 3146 3146 0.00      
7 A2 1142 1142 0.00      
8 A2 860 860 0.00      
9 B1 3160 3160 4.51      
10 B1 917 917 3.73      
11 B1 799 799 0.44      
12 B2 3057 3057 13.15      
13 B2 1403 1403 0.87      
14 B2 1009 1009 21.20      
15 B2 655 655 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 11690.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11690.3 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/daug-cc-pVDZ
ABC
0.72549 0.35024 0.26159

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.877
C2 0.000 0.745 -0.808
C3 0.000 -0.745 -0.808
H4 -0.927 1.266 -1.082
H5 0.927 1.266 -1.082
H6 0.927 -1.266 -1.082
H7 -0.927 -1.266 -1.082

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84231.84232.50922.50922.50922.5092
C21.84231.48971.09771.09772.23072.2307
C31.84231.48972.23072.23071.09771.0977
H42.50921.09772.23071.85373.13752.5313
H52.50921.09772.23071.85372.53133.1375
H62.50922.23071.09773.13752.53131.8537
H72.50922.23071.09772.53133.13751.8537

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.153 S1 C2 H4 114.807
S1 C2 H5 114.807 S1 C3 C2 66.153
S1 C3 H6 114.807 S1 C3 H7 114.807
C2 S1 C3 47.695 C2 C3 H6 118.322
C2 C3 H7 118.322 C3 C2 H4 118.322
C3 C2 H5 118.322 H4 C2 H5 115.204
H6 C3 H7 115.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.128      
2 C 1.626      
3 C 1.626      
4 H -0.781      
5 H -0.781      
6 H -0.781      
7 H -0.781      


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 -1.937 1.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.563 0.000 0.000
y 0.000 -24.760 0.000
z 0.000 0.000 -26.595
Traceless
 xyz
x -0.886 0.000 0.000
y 0.000 1.819 0.000
z 0.000 0.000 -0.933
Polar
3z2-r2-1.867
x2-y2-1.803
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.167 0.000 0.000
y 0.000 6.632 0.000
z 0.000 0.000 8.159


<r2> (average value of r2) Å2
<r2> 57.542
(<r2>)1/2 7.586