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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYPultrafine/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-476.849926
Energy at 298.15K-476.854359
HF Energy-476.849926
Nuclear repulsion energy100.858439
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/cc-pVTZ
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 3123 3019 15.64      
2 A1 1497 1447 3.23      
3 A1 1141 1103 1.87      
4 A1 1046 1011 0.76      
5 A1 622 601 24.73      
6 A2 3199 3093 0.00      
7 A2 1200 1160 0.00      
8 A2 901 871 0.00      
9 B1 3214 3107 5.84      
10 B1 955 923 3.75      
11 B1 838 810 0.39      
12 B2 3122 3018 15.15      
13 B2 1476 1427 0.66      
14 B2 1078 1042 26.15      
15 B2 662 640 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 12036.9 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 11636.0 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/cc-pVTZ
ABC
0.74030 0.35505 0.26528

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.871
C2 0.000 0.739 -0.803
C3 0.000 -0.739 -0.803
H4 -0.912 1.252 -1.076
H5 0.912 1.252 -1.076
H6 0.912 -1.252 -1.076
H7 -0.912 -1.252 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83031.83032.48862.48862.48862.4886
C21.83031.47761.08141.08142.20672.2067
C31.83031.47762.20672.20671.08141.0814
H42.48861.08142.20671.82353.09772.5040
H52.48861.08142.20671.82352.50403.0977
H62.48862.20671.08143.09772.50401.8235
H72.48862.20671.08142.50403.09771.8235

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.192 S1 C2 H4 115.013
S1 C2 H5 115.013 S1 C3 C2 66.192
S1 C3 H6 115.013 S1 C3 H7 115.013
C2 S1 C3 47.616 C2 C3 H6 118.331
C2 C3 H7 118.331 C3 C2 H4 118.331
C3 C2 H5 118.331 H4 C2 H5 114.947
H6 C3 H7 114.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.143      
2 C -0.179      
3 C -0.179      
4 H 0.125      
5 H 0.125      
6 H 0.125      
7 H 0.125      


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 -1.958 1.958
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.256 0.000 0.000
y 0.000 -24.592 0.000
z 0.000 0.000 -26.367
Traceless
 xyz
x -0.777 0.000 0.000
y 0.000 1.719 0.000
z 0.000 0.000 -0.943
Polar
3z2-r2-1.885
x2-y2-1.664
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.649 0.000 0.000
y 0.000 5.688 0.000
z 0.000 0.000 7.177


<r2> (average value of r2) Å2
<r2> 56.746
(<r2>)1/2 7.533