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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/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 PBEPBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.547270
Energy at 298.15K-476.551662
HF Energy-476.547270
Nuclear repulsion energy100.871642
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 PBEPBE/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 3047 3022 16.97      
2 A1 1439 1428 2.84      
3 A1 1121 1112 1.03      
4 A1 1006 998 1.04      
5 A1 633 628 20.28      
6 A2 3125 3099 0.00      
7 A2 1151 1141 0.00      
8 A2 871 864 0.00      
9 B1 3139 3114 3.72      
10 B1 927 919 3.90      
11 B1 810 803 0.55      
12 B2 3047 3022 11.93      
13 B2 1418 1407 1.05      
14 B2 1030 1022 22.08      
15 B2 671 665 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 11717.4 cm-1
Scaled (by 0.9918) Zero Point Vibrational Energy (zpe) 11621.3 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 PBEPBE/6-311+G(3df,2p)
ABC
0.73187 0.35819 0.26642

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.867
C2 0.000 0.743 -0.797
C3 0.000 -0.743 -0.797
H4 -0.920 1.259 -1.075
H5 0.920 1.259 -1.075
H6 0.920 -1.259 -1.075
H7 -0.920 -1.259 -1.075

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82251.82252.49062.49062.49062.4906
C21.82251.48521.09081.09082.22012.2201
C31.82251.48522.22012.22011.09081.0908
H42.49061.09082.22011.83983.11802.5174
H52.49061.09082.22011.83982.51743.1180
H62.49062.22011.09083.11802.51741.8398
H72.49062.22011.09082.51743.11801.8398

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.954 S1 C2 H4 115.181
S1 C2 H5 115.181 S1 C3 C2 65.954
S1 C3 H6 115.181 S1 C3 H7 115.181
C2 S1 C3 48.092 C2 C3 H6 118.237
C2 C3 H7 118.237 C3 C2 H4 118.237
C3 C2 H5 118.237 H4 C2 H5 114.990
H6 C3 H7 114.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.236      
2 C -0.145      
3 C -0.145      
4 H 0.132      
5 H 0.132      
6 H 0.132      
7 H 0.132      


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 -1.862 1.862
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.462 0.000 0.000
y 0.000 -24.663 0.000
z 0.000 0.000 -26.549
Traceless
 xyz
x -0.856 0.000 0.000
y 0.000 1.842 0.000
z 0.000 0.000 -0.986
Polar
3z2-r2-1.973
x2-y2-1.799
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.850 0.000 0.000
y 0.000 6.279 0.000
z 0.000 0.000 7.769


<r2> (average value of r2) Å2
<r2> 56.793
(<r2>)1/2 7.536