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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: M06-2X/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/6-31G**
 hartrees
Energy at 0K-476.709779
Energy at 298.15K-476.714264
HF Energy-476.709779
Nuclear repulsion energy101.365496
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 M06-2X/6-31G**
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 3160 3004 8.04      
2 A1 1517 1442 4.33      
3 A1 1174 1116 2.59      
4 A1 1059 1006 0.64      
5 A1 672 639 24.88      
6 A2 3247 3086 0.00      
7 A2 1194 1135 0.00      
8 A2 908 863 0.00      
9 B1 3259 3097 3.25      
10 B1 974 926 4.77      
11 B1 830 789 0.63      
12 B2 3159 3003 8.05      
13 B2 1484 1410 0.42      
14 B2 1086 1032 37.05      
15 B2 732 696 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 12228.4 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 11621.9 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 M06-2X/6-31G**
ABC
0.73778 0.36207 0.26906

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.741 -0.792
C3 0.000 -0.741 -0.792
H4 -0.915 1.251 -1.072
H5 0.915 1.251 -1.072
H6 0.915 -1.251 -1.072
H7 -0.915 -1.251 -1.072

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81291.81292.47902.47902.47902.4790
C21.81291.48101.08481.08482.20972.2097
C31.81291.48102.20972.20971.08481.0848
H42.47901.08482.20971.83063.10062.5025
H52.47901.08482.20971.83062.50253.1006
H62.47902.20971.08483.10062.50251.8306
H72.47902.20971.08482.50253.10061.8306

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.892 S1 C2 H4 115.312
S1 C2 H5 115.312 S1 C3 C2 65.892
S1 C3 H6 115.312 S1 C3 H7 115.312
C2 S1 C3 48.216 C2 C3 H6 118.086
C2 C3 H7 118.086 C3 C2 H4 118.086
C3 C2 H5 118.086 H4 C2 H5 115.078
H6 C3 H7 115.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.010      
2 C -0.350      
3 C -0.350      
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 -2.068 2.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.978 0.000 0.000
y 0.000 -24.165 0.000
z 0.000 0.000 -26.185
Traceless
 xyz
x -0.803 0.000 0.000
y 0.000 1.917 0.000
z 0.000 0.000 -1.113
Polar
3z2-r2-2.226
x2-y2-1.813
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.136 0.000 0.000
y 0.000 4.949 0.000
z 0.000 0.000 6.305


<r2> (average value of r2) Å2
<r2> 56.116
(<r2>)1/2 7.491