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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-471.233549
Energy at 298.15K-471.238073
HF Energy-471.233549
Nuclear repulsion energy101.151077
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 HSEh1PBE/STO-3G
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 3404 3006 0.15      
2 A1 1656 1463 2.44      
3 A1 1274 1125 0.15      
4 A1 1152 1017 0.10      
5 A1 835 738 5.59      
6 A2 3541 3127 0.00      
7 A2 1277 1128 0.00      
8 A2 986 871 0.00      
9 B1 3549 3134 1.14      
10 B1 1065 941 0.02      
11 B1 906 800 0.19      
12 B2 3398 3001 1.05      
13 B2 1635 1444 0.00      
14 B2 1208 1067 17.94      
15 B2 872 770 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 13378.5 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 11814.6 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 HSEh1PBE/STO-3G
ABC
0.71270 0.36833 0.26893

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.856
C2 0.000 0.759 -0.774
C3 0.000 -0.759 -0.774
H4 -0.914 1.266 -1.104
H5 0.914 1.266 -1.104
H6 0.914 -1.266 -1.104
H7 -0.914 -1.266 -1.104

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.79781.79782.50642.50642.50642.5064
C21.79781.51771.09651.09652.24642.2464
C31.79781.51772.24642.24641.09651.0965
H42.50641.09652.24641.82813.12352.5327
H52.50641.09652.24641.82812.53273.1235
H62.50642.24641.09653.12352.53271.8281
H72.50642.24641.09652.53273.12351.8281

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.033 S1 C2 H4 117.945
S1 C2 H5 117.945 S1 C3 C2 65.033
S1 C3 H6 117.945 S1 C3 H7 117.945
C2 S1 C3 49.934 C2 C3 H6 117.572
C2 C3 H7 117.572 C3 C2 H4 117.572
C3 C2 H5 117.572 H4 C2 H5 112.943
H6 C3 H7 112.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.115      
2 C -0.233      
3 C -0.233      
4 H 0.088      
5 H 0.088      
6 H 0.088      
7 H 0.088      


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 -0.720 0.720
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.067 0.000 0.000
y 0.000 -22.518 0.000
z 0.000 0.000 -23.929
Traceless
 xyz
x 0.156 0.000 0.000
y 0.000 0.980 0.000
z 0.000 0.000 -1.137
Polar
3z2-r2-2.273
x2-y2-0.549
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.616 0.000 0.000
y 0.000 2.584 0.000
z 0.000 0.000 2.997


<r2> (average value of r2) Å2
<r2> 54.926
(<r2>)1/2 7.411