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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-476.536004
Energy at 298.15K-476.540387
HF Energy-476.536004
Nuclear repulsion energy100.257773
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 PBEPBEultrafine/TZVP
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 3055 3020 14.81      
2 A1 1448 1431 4.16      
3 A1 1120 1107 2.70      
4 A1 1010 998 0.78      
5 A1 629 622 22.17      
6 A2 3135 3099 0.00      
7 A2 1153 1140 0.00      
8 A2 867 857 0.00      
9 B1 3150 3114 7.04      
10 B1 923 913 5.49      
11 B1 814 805 0.49      
12 B2 3056 3021 14.26      
13 B2 1426 1410 0.98      
14 B2 1026 1014 48.18      
15 B2 656 648 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 11733.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 11599.2 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 PBEPBEultrafine/TZVP
ABC
0.73085 0.35119 0.26244

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.876
C2 0.000 0.743 -0.807
C3 0.000 -0.743 -0.807
H4 -0.921 1.260 -1.084
H5 0.921 1.260 -1.084
H6 0.921 -1.260 -1.084
H7 -0.921 -1.260 -1.084

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83941.83942.50532.50532.50532.5053
C21.83941.48601.09161.09162.22182.2218
C31.83941.48602.22182.22181.09161.0916
H42.50531.09162.22181.84123.12092.5200
H52.50531.09162.22181.84122.52003.1209
H62.50532.22181.09163.12092.52001.8412
H72.50532.22181.09162.52003.12091.8412

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.176 S1 C2 H4 115.068
S1 C2 H5 115.068 S1 C3 C2 66.176
S1 C3 H6 115.068 S1 C3 H7 115.068
C2 S1 C3 47.648 C2 C3 H6 118.267
C2 C3 H7 118.267 C3 C2 H4 118.267
C3 C2 H5 118.267 H4 C2 H5 114.984
H6 C3 H7 114.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.090      
2 C -0.302      
3 C -0.302      
4 H 0.173      
5 H 0.173      
6 H 0.173      
7 H 0.173      


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 -2.026 2.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.267 0.000 0.000
y 0.000 -24.538 0.000
z 0.000 0.000 -26.427
Traceless
 xyz
x -0.785 0.000 0.000
y 0.000 1.809 0.000
z 0.000 0.000 -1.024
Polar
3z2-r2-2.048
x2-y2-1.730
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.553 0.000 0.000
y 0.000 5.815 0.000
z 0.000 0.000 7.063


<r2> (average value of r2) Å2
<r2> 57.232
(<r2>)1/2 7.565