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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-476.619508
Energy at 298.15K-476.623985
HF Energy-476.619508
Nuclear repulsion energy101.573899
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 HSEh1PBE/aug-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 3142 3022 15.54      
2 A1 1491 1434 2.24      
3 A1 1160 1116 1.12      
4 A1 1044 1004 1.01      
5 A1 662 636 24.20      
6 A2 3223 3100 0.00      
7 A2 1194 1148 0.00      
8 A2 903 868 0.00      
9 B1 3237 3113 2.32      
10 B1 962 925 3.26      
11 B1 834 802 0.72      
12 B2 3141 3021 10.26      
13 B2 1465 1409 1.36      
14 B2 1077 1036 22.22      
15 B2 708 681 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 12119.7 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 11656.7 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 HSEh1PBE/aug-cc-pVTZ
ABC
0.74171 0.36327 0.27014

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.861
C2 0.000 0.738 -0.792
C3 0.000 -0.738 -0.792
H4 -0.914 1.249 -1.067
H5 0.914 1.249 -1.067
H6 0.914 -1.249 -1.067
H7 -0.914 -1.249 -1.067

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81011.81012.47242.47242.47242.4724
C21.81011.47601.08261.08262.20452.2045
C31.81011.47602.20452.20451.08261.0826
H42.47241.08262.20451.82743.09552.4986
H52.47241.08262.20451.82742.49863.0955
H62.47242.20451.08263.09552.49861.8274
H72.47242.20451.08262.49863.09551.8274

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.939 S1 C2 H4 115.131
S1 C2 H5 115.131 S1 C3 C2 65.939
S1 C3 H6 115.131 S1 C3 H7 115.131
C2 S1 C3 48.123 C2 C3 H6 118.183
C2 C3 H7 118.183 C3 C2 H4 118.183
C3 C2 H5 118.183 H4 C2 H5 115.128
H6 C3 H7 115.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.042      
2 C -0.448      
3 C -0.448      
4 H 0.234      
5 H 0.234      
6 H 0.234      
7 H 0.234      


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 -1.931 1.931
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.194 0.000 0.000
y 0.000 -24.457 0.000
z 0.000 0.000 -26.396
Traceless
 xyz
x -0.768 0.000 0.000
y 0.000 1.838 0.000
z 0.000 0.000 -1.071
Polar
3z2-r2-2.141
x2-y2-1.738
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.761 0.000 0.000
y 0.000 6.279 0.000
z 0.000 0.000 7.724


<r2> (average value of r2) Å2
<r2> 56.097
(<r2>)1/2 7.490