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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYPultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.845877
Energy at 298.15K-476.850311
HF Energy-476.845877
Nuclear repulsion energy101.069788
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 B3LYPultrafine/6-311+G(3df,2p)
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 3118 3118 15.98      
2 A1 1498 1498 2.89      
3 A1 1140 1140 1.39      
4 A1 1046 1046 0.73      
5 A1 625 625 24.89      
6 A2 3195 3195 0.00      
7 A2 1197 1197 0.00      
8 A2 900 900 0.00      
9 B1 3209 3209 3.42      
10 B1 957 957 3.42      
11 B1 838 838 0.57      
12 B2 3117 3117 11.65      
13 B2 1475 1475 0.93      
14 B2 1080 1080 23.14      
15 B2 668 668 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 12030.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12030.9 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 B3LYPultrafine/6-311+G(3df,2p)
ABC
0.73984 0.35775 0.26671

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.868
C2 0.000 0.739 -0.799
C3 0.000 -0.739 -0.799
H4 -0.912 1.252 -1.074
H5 0.912 1.252 -1.074
H6 0.912 -1.252 -1.074
H7 -0.912 -1.252 -1.074

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82371.82372.48432.48432.48432.4843
C21.82371.47851.08161.08162.20732.2073
C31.82371.47852.20732.20731.08161.0816
H42.48431.08162.20731.82333.09772.5043
H52.48431.08162.20731.82332.50433.0977
H62.48432.20731.08163.09772.50431.8233
H72.48432.20731.08162.50433.09771.8233

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.088 S1 C2 H4 115.138
S1 C2 H5 115.138 S1 C3 C2 66.088
S1 C3 H6 115.138 S1 C3 H7 115.138
C2 S1 C3 47.825 C2 C3 H6 118.308
C2 C3 H7 118.308 C3 C2 H4 118.308
C3 C2 H5 118.308 H4 C2 H5 114.885
H6 C3 H7 114.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.224      
2 C -0.208      
3 C -0.208      
4 H 0.160      
5 H 0.160      
6 H 0.160      
7 H 0.160      


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 -1.918 1.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.525 0.000 0.000
y 0.000 -24.666 0.000
z 0.000 0.000 -26.568
Traceless
 xyz
x -0.908 0.000 0.000
y 0.000 1.881 0.000
z 0.000 0.000 -0.973
Polar
3z2-r2-1.945
x2-y2-1.859
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.687 0.000 0.000
y 0.000 6.133 0.000
z 0.000 0.000 7.663


<r2> (average value of r2) Å2
<r2> 56.678
(<r2>)1/2 7.528