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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-88.674861
Energy at 298.15K-88.679179
HF Energy-88.674861
Nuclear repulsion energy56.204328
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 B3LYP/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3176 3053 9.28      
2 A1 1506 1448 0.37      
3 A1 1147 1102 1.49      
4 A1 1066 1025 9.40      
5 A1 562 540 19.52      
6 A2 3273 3146 0.00      
7 A2 1208 1161 0.00      
8 A2 887 853 0.00      
9 B1 3291 3163 13.78      
10 B1 922 886 7.15      
11 B1 844 811 3.15      
12 B2 3170 3047 12.51      
13 B2 1486 1428 8.84      
14 B2 1093 1051 68.73      
15 B2 567 545 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 12099.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 11629.8 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 B3LYP/LANL2DZ
ABC
0.72638 0.31861 0.24310

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.922
C2 0.000 0.745 -0.858
C3 0.000 -0.745 -0.858
H4 -0.917 1.268 -1.112
H5 0.917 1.268 -1.112
H6 0.917 -1.268 -1.112
H7 -0.917 -1.268 -1.112

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.93001.93002.56652.56652.56652.5665
C21.93001.49091.08531.08532.22702.2270
C31.93001.49092.22702.22701.08531.0853
H42.56651.08532.22701.83323.12952.5363
H52.56651.08532.22701.83322.53633.1295
H62.56652.22701.08533.12952.53631.8332
H72.56652.22701.08532.53633.12951.8332

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 67.279 S1 C2 H4 113.702
S1 C2 H5 113.702 S1 C3 C2 67.279
S1 C3 H6 113.702 S1 C3 H7 113.702
C2 S1 C3 45.442 C2 C3 H6 118.790
C2 C3 H7 118.790 C3 C2 H4 118.790
C3 C2 H5 118.790 H4 C2 H5 115.244
H6 C3 H7 115.244
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.008      
2 C -0.529      
3 C -0.529      
4 H 0.262      
5 H 0.262      
6 H 0.262      
7 H 0.262      


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 -2.486 2.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.397 0.000 0.000
y 0.000 -23.687 0.000
z 0.000 0.000 -25.878
Traceless
 xyz
x -0.615 0.000 0.000
y 0.000 1.950 0.000
z 0.000 0.000 -1.336
Polar
3z2-r2-2.671
x2-y2-1.710
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.132 0.000 0.000
y 0.000 5.006 0.000
z 0.000 0.000 6.892


<r2> (average value of r2) Å2
<r2> 50.960
(<r2>)1/2 7.139