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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3PW91/daug-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 B3PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-476.772549
Energy at 298.15K-476.776996
HF Energy-476.772549
Nuclear repulsion energy101.349470
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 B3PW91/daug-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 3129 3129 15.92      
2 A1 1488 1488 2.40      
3 A1 1151 1151 1.18      
4 A1 1040 1040 0.94      
5 A1 650 650 23.99      
6 A2 3209 3209 0.00      
7 A2 1191 1191 0.00      
8 A2 899 899 0.00      
9 B1 3223 3223 2.79      
10 B1 956 956 3.30      
11 B1 833 833 0.66      
12 B2 3128 3128 11.09      
13 B2 1463 1463 1.26      
14 B2 1072 1072 22.16      
15 B2 693 693 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 12063.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12063.2 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 B3PW91/daug-cc-pVTZ
ABC
0.74064 0.36089 0.26868

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.864
C2 0.000 0.739 -0.795
C3 0.000 -0.739 -0.795
H4 -0.914 1.251 -1.070
H5 0.914 1.251 -1.070
H6 0.914 -1.251 -1.070
H7 -0.914 -1.251 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81591.81592.47742.47742.47742.4774
C21.81591.47711.08281.08282.20622.2062
C31.81591.47712.20622.20621.08281.0828
H42.47741.08282.20621.82713.09762.5014
H52.47741.08282.20621.82712.50143.0976
H62.47742.20621.08283.09762.50141.8271
H72.47742.20621.08282.50143.09761.8271

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.002 S1 C2 H4 115.097
S1 C2 H5 115.097 S1 C3 C2 66.002
S1 C3 H6 115.097 S1 C3 H7 115.097
C2 S1 C3 47.996 C2 C3 H6 118.231
C2 C3 H7 118.231 C3 C2 H4 118.231
C3 C2 H5 118.231 H4 C2 H5 115.073
H6 C3 H7 115.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.382      
2 C -0.481      
3 C -0.481      
4 H 0.336      
5 H 0.336      
6 H 0.336      
7 H 0.336      


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 -1.936 1.936
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.117 0.000 0.000
y 0.000 -24.387 0.000
z 0.000 0.000 -26.300
Traceless
 xyz
x -0.773 0.000 0.000
y 0.000 1.821 0.000
z 0.000 0.000 -1.048
Polar
3z2-r2-2.095
x2-y2-1.730
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.806 0.000 0.000
y 0.000 6.307 0.000
z 0.000 0.000 7.765


<r2> (average value of r2) Å2
<r2> 56.234
(<r2>)1/2 7.499