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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-474.343418
Energy at 298.15K-474.347804
HF Energy-474.343418
Nuclear repulsion energy97.870401
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 wB97X-D/3-21G
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 3211 3211 1.86      
2 A1 1532 1532 1.87      
3 A1 1128 1128 0.08      
4 A1 1082 1082 7.42      
5 A1 597 597 24.91      
6 A2 3301 3301 0.00      
7 A2 1233 1233 0.00      
8 A2 853 853 0.00      
9 B1 3319 3319 0.17      
10 B1 929 929 1.26      
11 B1 868 868 5.02      
12 B2 3207 3207 2.04      
13 B2 1507 1507 10.66      
14 B2 1117 1117 46.49      
15 B2 611 611 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 12246.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12246.9 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 wB97X-D/3-21G
ABC
0.73527 0.32169 0.24609

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.917
C2 0.000 0.741 -0.854
C3 0.000 -0.741 -0.854
H4 -0.920 1.253 -1.104
H5 0.920 1.253 -1.104
H6 0.920 -1.253 -1.104
H7 -0.920 -1.253 -1.104

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.91991.91992.55002.55002.55002.5500
C21.91991.48211.08251.08252.21072.2107
C31.91991.48212.21072.21071.08251.0825
H42.55001.08252.21071.84043.10982.5068
H52.55001.08252.21071.84042.50683.1098
H62.55002.21071.08253.10982.50681.8404
H72.55002.21071.08252.50683.10981.8404

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 67.294 S1 C2 H4 113.313
S1 C2 H5 113.313 S1 C3 C2 67.294
S1 C3 H6 113.313 S1 C3 H7 113.313
C2 S1 C3 45.411 C2 C3 H6 118.248
C2 C3 H7 118.248 C3 C2 H4 118.248
C3 C2 H5 118.248 H4 C2 H5 116.443
H6 C3 H7 116.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.139      
2 C -0.618      
3 C -0.618      
4 H 0.274      
5 H 0.274      
6 H 0.274      
7 H 0.274      


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 -2.450 2.450
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.136 0.000 0.000
y 0.000 -24.399 0.000
z 0.000 0.000 -26.925
Traceless
 xyz
x -0.475 0.000 0.000
y 0.000 2.132 0.000
z 0.000 0.000 -1.657
Polar
3z2-r2-3.314
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 3.350 0.000 0.000
y 0.000 4.536 0.000
z 0.000 0.000 6.500


<r2> (average value of r2) Å2
<r2> 59.472
(<r2>)1/2 7.712