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

using model chemistry: LSDA/6-31G**

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/6-31G**
 hartrees
Energy at 0K-627.139921
Energy at 298.15K-627.147189
Nuclear repulsion energy293.503499
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/6-31G**
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 3715 3646 46.22      
2 A 3143 3084 6.64      
3 A 3087 3030 5.35      
4 A 3022 2966 24.30      
5 A 3005 2949 9.11      
6 A 2925 2870 45.47      
7 A 1695 1663 153.87      
8 A 1429 1403 0.57      
9 A 1411 1384 8.50      
10 A 1356 1331 21.04      
11 A 1292 1268 7.62      
12 A 1271 1247 50.54      
13 A 1237 1214 9.50      
14 A 1159 1138 19.29      
15 A 1117 1096 11.81      
16 A 1104 1083 149.84      
17 A 1024 1005 20.31      
18 A 971 953 5.33      
19 A 937 919 14.03      
20 A 850 834 3.02      
21 A 696 683 5.38      
22 A 685 672 43.20      
23 A 682 670 18.10      
24 A 614 602 5.67      
25 A 523 514 3.41      
26 A 462 453 2.87      
27 A 364 357 94.19      
28 A 355 348 13.14      
29 A 258 253 7.49      
30 A 177 174 3.47      

Unscaled Zero Point Vibrational Energy (zpe) 20282.4 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 19903.1 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/6-31G**
ABC
0.15740 0.10237 0.06476

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.063 -1.258 -0.123
C2 -0.850 0.245 0.024
C3 -0.106 1.364 0.030
C4 1.345 1.098 -0.190
C5 1.577 -0.326 0.287
O6 -2.180 0.087 0.085
H7 -0.535 2.369 0.091
H8 2.005 1.793 0.359
H9 1.702 -0.355 1.384
H10 1.607 1.191 -1.266
H11 2.442 -0.816 -0.187
H12 -2.594 0.966 -0.008

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76542.63252.68301.82442.62353.68273.64852.40183.11292.41983.4674
C21.76541.34402.36462.50791.34012.14823.26522.95302.93233.46521.8871
C32.63251.34401.49152.39982.43611.09432.17942.83802.15543.36052.5197
C42.68302.36461.49151.52013.67692.28671.10462.17091.11162.20623.9451
C51.82442.50792.39981.52013.78513.43032.16301.10382.17161.10064.3770
O62.62351.34012.43613.67693.78512.81314.52764.11644.16954.71640.9767
H73.68272.14821.09432.28673.43032.81312.61873.75382.79664.36862.4932
H83.64853.26522.17941.10462.16304.52762.61872.39851.77802.70094.6872
H92.40182.95302.83802.17091.10384.11643.75382.39853.06891.79624.7045
H103.11292.93232.15541.11162.17164.16952.79661.77803.06892.42694.3912
H112.41983.46523.36052.20621.10064.71644.36862.70091.79622.42695.3446
H123.46741.88712.51973.94514.37700.97672.49324.68724.70454.39125.3446

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 115.022 S1 C2 O6 114.609
S1 C5 C4 106.329 S1 C5 H9 107.660
S1 C5 H11 109.118 C2 S1 C5 88.616
C2 C3 C4 112.911 C2 C3 H7 123.216
C2 O6 H12 108.056 C3 C2 O6 130.355
C3 C4 C5 105.659 C3 C4 H8 113.337
C3 C4 H10 110.950 C4 C3 H7 123.614
C4 C5 H9 110.665 C4 C5 H11 113.711
C5 C4 H8 109.990 C5 C4 H10 110.244
H8 C4 H10 106.697 H9 C5 H11 109.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.145      
2 C 0.092      
3 C -0.120      
4 C -0.297      
5 C -0.425      
6 O -0.484      
7 H 0.103      
8 H 0.142      
9 H 0.182      
10 H 0.149      
11 H 0.168      
12 H 0.343      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.437 2.422 0.123 2.464
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.318 -4.973 0.853
y -4.973 -41.727 -0.165
z 0.853 -0.165 -44.556
Traceless
 xyz
x 6.823 -4.973 0.853
y -4.973 -1.289 -0.165
z 0.853 -0.165 -5.534
Polar
3z2-r2-11.068
x2-y25.408
xy-4.973
xz0.853
yz-0.165


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.355 0.292 -0.020
y 0.292 10.346 0.154
z -0.020 0.154 5.792


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