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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-2-ol)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-624.032148
Energy at 298.15K-624.039450
Nuclear repulsion energy291.988079
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 LSDA/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3420 3358 17.01      
2 A 3156 3099 4.77      
3 A 3087 3031 3.54      
4 A 3035 2980 15.12      
5 A 3008 2953 9.10      
6 A 2940 2887 33.04      
7 A 1668 1638 111.86      
8 A 1470 1444 1.09      
9 A 1454 1428 12.46      
10 A 1378 1353 19.29      
11 A 1309 1286 15.54      
12 A 1282 1259 12.72      
13 A 1261 1238 4.51      
14 A 1178 1156 3.47      
15 A 1150 1130 0.22      
16 A 1091 1071 171.45      
17 A 1034 1015 60.50      
18 A 980 963 16.62      
19 A 928 911 18.92      
20 A 864 848 5.47      
21 A 726 713 66.03      
22 A 690 678 6.95      
23 A 672 660 14.82      
24 A 624 613 8.14      
25 A 534 524 3.62      
26 A 470 462 3.05      
27 A 380 373 129.81      
28 A 342 336 10.28      
29 A 257 253 6.14      
30 A 168 165 2.92      

Unscaled Zero Point Vibrational Energy (zpe) 20276.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 19911.6 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 LSDA/3-21G*
ABC
0.15674 0.10088 0.06409

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.050 -1.257 -0.125
C2 -0.846 0.259 0.022
C3 -0.090 1.369 0.022
C4 1.370 1.094 -0.188
C5 1.582 -0.350 0.292
O6 -2.195 0.095 0.087
H7 -0.494 2.382 0.086
H8 2.023 1.779 0.383
H9 1.702 -0.369 1.389
H10 1.636 1.182 -1.264
H11 2.442 -0.842 -0.189
H12 -2.649 0.987 0.013

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76782.63452.69771.82862.63023.68603.65652.41083.12422.42833.5130
C21.76781.34252.37762.51731.36122.15273.26652.95902.94343.47351.9443
C32.63451.34251.50132.41322.46141.09202.18302.84682.16073.36832.5868
C42.69772.37761.50131.53613.71352.28211.10472.17691.11162.21284.0258
C51.82862.51732.41321.53613.80903.43692.17571.10452.18341.10144.4455
O62.63021.36122.46143.71353.80902.85074.55194.13554.20554.73911.0030
H73.68602.15271.09202.28213.43692.85072.60503.75352.79244.36872.5685
H83.65653.26652.18301.10472.17574.55192.60502.39371.79372.71494.7531
H92.41082.95902.84682.17691.10454.13553.75352.39373.07381.80644.7606
H103.12422.94342.16071.11162.18344.20552.79241.79373.07382.42874.4753
H112.42833.47353.36832.21281.10144.73914.36872.71491.80642.42875.4129
H123.51301.94432.58684.02584.44551.00302.56854.75314.76064.47535.4129

picture of 4,5-dihydrothiophene-2-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 115.096 S1 C2 O6 113.772
S1 C5 C4 106.274 S1 C5 H9 108.003
S1 C5 H11 109.429 C2 S1 C5 88.830
C2 C3 C4 113.339 C2 C3 H7 123.991
C2 O6 H12 109.723 C3 C2 O6 131.114
C3 C4 C5 105.211 C3 C4 H8 112.911
C3 C4 H10 110.693 C4 C3 H7 122.497
C4 C5 H9 109.980 C4 C5 H11 113.030
C5 C4 H8 109.874 C5 C4 H10 110.071
H8 C4 H10 108.064 H9 C5 H11 109.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.265      
2 C 0.045      
3 C -0.224      
4 C -0.481      
5 C -0.604      
6 O -0.532      
7 H 0.193      
8 H 0.229      
9 H 0.256      
10 H 0.233      
11 H 0.246      
12 H 0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.411 2.572 0.116 2.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.192 -5.555 0.755
y -5.555 -41.590 -0.026
z 0.755 -0.026 -45.029
Traceless
 xyz
x 7.117 -5.555 0.755
y -5.555 -0.979 -0.026
z 0.755 -0.026 -6.138
Polar
3z2-r2-12.276
x2-y25.397
xy-5.555
xz0.755
yz-0.026


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.860 0.247 -0.012
y 0.247 9.598 0.176
z -0.012 0.176 4.967


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000