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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-476.803614
Energy at 298.15K-476.808025
HF Energy-476.803614
Nuclear repulsion energy100.183659
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-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 3116 3022 12.03      
2 A1 1472 1428 3.07      
3 A1 1146 1111 2.89      
4 A1 1033 1002 0.17      
5 A1 632 613 24.89      
6 A2 3200 3104 0.00      
7 A2 1182 1146 0.00      
8 A2 881 854 0.00      
9 B1 3215 3118 7.10      
10 B1 939 911 4.65      
11 B1 828 803 0.44      
12 B2 3114 3020 14.11      
13 B2 1441 1398 0.45      
14 B2 1053 1021 25.79      
15 B2 658 638 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 11954.1 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 11595.5 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-pVDZ
ABC
0.73156 0.35020 0.26205

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.877
C2 0.000 0.741 -0.808
C3 0.000 -0.741 -0.808
H4 -0.922 1.262 -1.084
H5 0.922 1.262 -1.084
H6 0.922 -1.262 -1.084
H7 -0.922 -1.262 -1.084

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84141.84142.50772.50772.50772.5077
C21.84141.48281.09411.09412.22282.2228
C31.84141.48282.22282.22281.09411.0941
H42.50771.09412.22281.84363.12632.5249
H52.50771.09412.22281.84362.52493.1263
H62.50772.22281.09413.12632.52491.8436
H72.50772.22281.09412.52493.12631.8436

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.256 S1 C2 H4 114.968
S1 C2 H5 114.968 S1 C3 C2 66.256
S1 C3 H6 114.968 S1 C3 H7 114.968
C2 S1 C3 47.487 C2 C3 H6 118.440
C2 C3 H7 118.440 C3 C2 H4 118.440
C3 C2 H5 118.440 H4 C2 H5 114.818
H6 C3 H7 114.818
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.119      
2 C -0.059      
3 C -0.059      
4 H 0.060      
5 H 0.060      
6 H 0.060      
7 H 0.060      


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 -1.895 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.971 0.000 0.000
y 0.000 -24.400 0.000
z 0.000 0.000 -25.997
Traceless
 xyz
x -0.772 0.000 0.000
y 0.000 1.584 0.000
z 0.000 0.000 -0.812
Polar
3z2-r2-1.624
x2-y2-1.570
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.996 0.000 0.000
y 0.000 5.090 0.000
z 0.000 0.000 6.495


<r2> (average value of r2) Å2
<r2> 57.119
(<r2>)1/2 7.558