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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B97D3/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31G(2df,p)
 hartrees
Energy at 0K-476.743483
Energy at 298.15K-476.747875
HF Energy-476.743483
Nuclear repulsion energy100.686286
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 B97D3/6-31G(2df,p)
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 3073 3073 17.42      
2 A1 1460 1460 6.44      
3 A1 1128 1128 1.90      
4 A1 1020 1020 0.02      
5 A1 622 622 22.78      
6 A2 3155 3155 0.00      
7 A2 1167 1167 0.00      
8 A2 880 880 0.00      
9 B1 3171 3171 9.02      
10 B1 937 937 4.32      
11 B1 816 816 0.27      
12 B2 3073 3073 19.11      
13 B2 1441 1441 0.00      
14 B2 1041 1041 24.75      
15 B2 668 668 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11825.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11825.5 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 B97D3/6-31G(2df,p)
ABC
0.73075 0.35625 0.26510

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.870
C2 0.000 0.744 -0.800
C3 0.000 -0.744 -0.800
H4 -0.918 1.260 -1.077
H5 0.918 1.260 -1.077
H6 0.918 -1.260 -1.077
H7 -0.918 -1.260 -1.077

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82791.82792.49412.49412.49412.4941
C21.82791.48721.08931.08932.22132.2213
C31.82791.48722.22132.22131.08931.0893
H42.49411.08932.22131.83643.11812.5199
H52.49411.08932.22131.83642.51993.1181
H62.49412.22131.08933.11812.51991.8364
H72.49412.22131.08932.51993.11811.8364

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.996 S1 C2 H4 115.160
S1 C2 H5 115.160 S1 C3 C2 65.996
S1 C3 H6 115.160 S1 C3 H7 115.160
C2 S1 C3 48.009 C2 C3 H6 118.298
C2 C3 H7 118.298 C3 C2 H4 118.298
C3 C2 H5 118.298 H4 C2 H5 114.911
H6 C3 H7 114.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.189      
2 C -0.201      
3 C -0.201      
4 H 0.148      
5 H 0.148      
6 H 0.148      
7 H 0.148      


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 -2.036 2.036
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.737 0.000 0.000
y 0.000 -24.040 0.000
z 0.000 0.000 -25.749
Traceless
 xyz
x -0.843 0.000 0.000
y 0.000 1.703 0.000
z 0.000 0.000 -0.860
Polar
3z2-r2-1.720
x2-y2-1.697
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.613 0.000 0.000
y 0.000 5.304 0.000
z 0.000 0.000 6.600


<r2> (average value of r2) Å2
<r2> 56.506
(<r2>)1/2 7.517