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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: BLYP/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 BLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.781439
Energy at 298.15K-476.785785
HF Energy-476.781439
Nuclear repulsion energy100.050346
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 BLYP/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 3039 3023 17.68      
2 A1 1457 1449 3.44      
3 A1 1101 1095 1.50      
4 A1 1014 1008 0.63      
5 A1 590 586 22.33      
6 A2 3113 3096 0.00      
7 A2 1165 1159 0.00      
8 A2 872 867 0.00      
9 B1 3128 3111 5.35      
10 B1 923 918 3.82      
11 B1 817 813 0.39      
12 B2 3040 3023 14.01      
13 B2 1439 1431 0.55      
14 B2 1040 1034 22.39      
15 B2 621 617 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 11678.7 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 11614.5 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 BLYP/6-311+G(3df,2p)
ABC
0.73069 0.34864 0.26077

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.880
C2 0.000 0.743 -0.811
C3 0.000 -0.743 -0.811
H4 -0.917 1.262 -1.084
H5 0.917 1.262 -1.084
H6 0.917 -1.262 -1.084
H7 -0.917 -1.262 -1.084

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84701.84702.50782.50782.50782.5078
C21.84701.48691.08801.08802.22162.2216
C31.84701.48692.22162.22161.08801.0880
H42.50781.08802.22161.83383.11922.5231
H52.50781.08802.22161.83382.52313.1192
H62.50782.22161.08803.11922.52311.8338
H72.50782.22161.08802.52313.11921.8338

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.264 S1 C2 H4 114.927
S1 C2 H5 114.927 S1 C3 C2 66.264
S1 C3 H6 114.927 S1 C3 H7 114.927
C2 S1 C3 47.471 C2 C3 H6 118.437
C2 C3 H7 118.437 C3 C2 H4 118.437
C3 C2 H5 118.437 H4 C2 H5 114.863
H6 C3 H7 114.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.231      
2 C -0.210      
3 C -0.210      
4 H 0.163      
5 H 0.163      
6 H 0.163      
7 H 0.163      


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 -1.902 1.902
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.774 0.000 0.000
y 0.000 -24.906 0.000
z 0.000 0.000 -26.741
Traceless
 xyz
x -0.951 0.000 0.000
y 0.000 1.851 0.000
z 0.000 0.000 -0.901
Polar
3z2-r2-1.801
x2-y2-1.868
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.926 0.000 0.000
y 0.000 6.339 0.000
z 0.000 0.000 7.960


<r2> (average value of r2) Å2
<r2> 57.667
(<r2>)1/2 7.594