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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-476.849926
Energy at 298.15K-476.854359
HF Energy-476.849926
Nuclear repulsion energy100.852793
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/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 3124 3020 15.61      
2 A1 1498 1448 3.22      
3 A1 1142 1103 1.89      
4 A1 1046 1011 0.76      
5 A1 623 602 24.76      
6 A2 3200 3093 0.00      
7 A2 1200 1160 0.00      
8 A2 900 870 0.00      
9 B1 3215 3108 5.82      
10 B1 955 923 3.75      
11 B1 839 811 0.39      
12 B2 3123 3019 15.14      
13 B2 1476 1427 0.67      
14 B2 1078 1042 26.10      
15 B2 663 641 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 12039.8 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 11637.7 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/cc-pVTZ
ABC
0.74044 0.35494 0.26523

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.872
C2 0.000 0.739 -0.803
C3 0.000 -0.739 -0.803
H4 -0.912 1.252 -1.076
H5 0.912 1.252 -1.076
H6 0.912 -1.252 -1.076
H7 -0.912 -1.252 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83051.83052.48852.48852.48852.4885
C21.83051.47741.08141.08142.20662.2066
C31.83051.47742.20662.20661.08141.0814
H42.48851.08142.20661.82363.09772.5041
H52.48851.08142.20661.82362.50413.0977
H62.48852.20661.08143.09772.50411.8236
H72.48852.20661.08142.50413.09771.8236

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.200 S1 C2 H4 114.991
S1 C2 H5 114.991 S1 C3 C2 66.200
S1 C3 H6 114.991 S1 C3 H7 114.991
C2 S1 C3 47.600 C2 C3 H6 118.340
C2 C3 H7 118.340 C3 C2 H4 118.340
C3 C2 H5 118.340 H4 C2 H5 114.956
H6 C3 H7 114.956
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.143      
2 C -0.179      
3 C -0.179      
4 H 0.125      
5 H 0.125      
6 H 0.125      
7 H 0.125      


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 -1.959 1.959
CHELPG        
AIM        
ESP 0.021 0.000 -2.019 2.019


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.256 0.000 0.000
y 0.000 -24.592 0.000
z 0.000 0.000 -26.367
Traceless
 xyz
x -0.776 0.000 0.000
y 0.000 1.720 0.000
z 0.000 0.000 -0.944
Polar
3z2-r2-1.887
x2-y2-1.664
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.650 0.000 0.000
y 0.000 5.687 0.000
z 0.000 0.000 7.178


<r2> (average value of r2) Å2
<r2> 56.750
(<r2>)1/2 7.533