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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBE1PBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-476.562740
Energy at 298.15K-476.567203
HF Energy-476.562740
Nuclear repulsion energy100.950781
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 PBE1PBE/aug-cc-pVDZ
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 3151 3030 15.06      
2 A1 1482 1425 1.98      
3 A1 1166 1121 1.47      
4 A1 1035 995 0.82      
5 A1 665 640 25.17      
6 A2 3242 3118 0.00      
7 A2 1183 1137 0.00      
8 A2 895 860 0.00      
9 B1 3256 3131 2.39      
10 B1 955 918 3.16      
11 B1 827 795 0.69      
12 B2 3148 3027 10.10      
13 B2 1450 1394 1.29      
14 B2 1055 1014 22.54      
15 B2 698 671 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 12103.7 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 11638.9 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 PBE1PBE/aug-cc-pVDZ
ABC
0.73517 0.35805 0.26685

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.867
C2 0.000 0.740 -0.799
C3 0.000 -0.740 -0.799
H4 -0.921 1.256 -1.072
H5 0.921 1.256 -1.072
H6 0.921 -1.256 -1.072
H7 -0.921 -1.256 -1.072

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82251.82252.48682.48682.48682.4868
C21.82251.48051.09041.09042.21542.2154
C31.82251.48052.21542.21541.09041.0904
H42.48681.09042.21541.84223.11502.5119
H52.48681.09042.21541.84222.51193.1150
H62.48682.21541.09043.11502.51191.8422
H72.48682.21541.09042.51193.11501.8422

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.036 S1 C2 H4 114.902
S1 C2 H5 114.902 S1 C3 C2 66.036
S1 C3 H6 114.902 S1 C3 H7 114.902
C2 S1 C3 47.929 C2 C3 H6 118.226
C2 C3 H7 118.226 C3 C2 H4 118.226
C3 C2 H5 118.226 H4 C2 H5 115.282
H6 C3 H7 115.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.066      
2 C 0.666      
3 C 0.666      
4 H -0.349      
5 H -0.349      
6 H -0.349      
7 H -0.349      


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 -2.002 2.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.309 0.000 0.000
y 0.000 -24.501 0.000
z 0.000 0.000 -26.465
Traceless
 xyz
x -0.826 0.000 0.000
y 0.000 1.886 0.000
z 0.000 0.000 -1.060
Polar
3z2-r2-2.120
x2-y2-1.808
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.667 0.000 0.000
y 0.000 6.236 0.000
z 0.000 0.000 7.724


<r2> (average value of r2) Å2
<r2> 56.637
(<r2>)1/2 7.526