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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HSEh1PBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-476.562931
Energy at 298.15K-476.567410
HF Energy-476.562931
Nuclear repulsion energy101.266871
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/6-31+G**
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 3158 3016 12.63      
2 A1 1507 1439 4.56      
3 A1 1169 1116 3.25      
4 A1 1056 1009 1.24      
5 A1 670 639 26.95      
6 A2 3244 3097 0.00      
7 A2 1193 1139 0.00      
8 A2 911 870 0.00      
9 B1 3257 3109 3.54      
10 B1 971 927 4.36      
11 B1 841 803 1.13      
12 B2 3157 3014 10.53      
13 B2 1476 1409 1.06      
14 B2 1086 1037 41.83      
15 B2 710 678 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 12202.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11650.5 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/6-31+G**
ABC
0.73707 0.36120 0.26851

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.740 -0.793
C3 0.000 -0.740 -0.793
H4 -0.916 1.254 -1.074
H5 0.916 1.254 -1.074
H6 0.916 -1.254 -1.074
H7 -0.916 -1.254 -1.074

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81461.81462.48282.48282.48282.4828
C21.81461.48071.08671.08672.21212.2121
C31.81461.48072.21212.21211.08671.0867
H42.48281.08672.21211.83143.10492.5073
H52.48281.08672.21211.83142.50733.1049
H62.48282.21211.08673.10492.50731.8314
H72.48282.21211.08672.50733.10491.8314

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.921 S1 C2 H4 115.384
S1 C2 H5 115.384 S1 C3 C2 65.921
S1 C3 H6 115.384 S1 C3 H7 115.384
C2 S1 C3 48.158 C2 C3 H6 118.187
C2 C3 H7 118.187 C3 C2 H4 118.187
C3 C2 H5 118.187 H4 C2 H5 114.846
H6 C3 H7 114.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.048      
2 C -0.381      
3 C -0.381      
4 H 0.202      
5 H 0.202      
6 H 0.202      
7 H 0.202      


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 -2.126 2.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.320 0.000 0.000
y 0.000 -24.392 0.000
z 0.000 0.000 -26.594
Traceless
 xyz
x -0.827 0.000 0.000
y 0.000 2.065 0.000
z 0.000 0.000 -1.238
Polar
3z2-r2-2.475
x2-y2-1.928
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.976 0.000 0.000
y 0.000 5.421 0.000
z 0.000 0.000 6.876


<r2> (average value of r2) Å2
<r2> 56.407
(<r2>)1/2 7.510