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

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

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/6-31+G**
 hartrees
Energy at 0K-627.152884
Energy at 298.15K-627.160135
Nuclear repulsion energy293.431934
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/6-31+G**
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 3717 3661 58.63      
2 A 3139 3092 7.12      
3 A 3081 3034 5.83      
4 A 3019 2974 21.36      
5 A 2995 2950 14.40      
6 A 2919 2875 50.21      
7 A 1672 1647 172.35      
8 A 1420 1399 2.00      
9 A 1402 1381 11.04      
10 A 1335 1315 23.69      
11 A 1285 1266 8.75      
12 A 1260 1241 51.61      
13 A 1230 1211 9.71      
14 A 1154 1137 19.34      
15 A 1111 1094 4.38      
16 A 1091 1074 156.35      
17 A 1020 1005 24.64      
18 A 970 955 7.79      
19 A 933 919 16.34      
20 A 851 838 2.67      
21 A 695 684 7.83      
22 A 684 674 47.35      
23 A 683 672 16.51      
24 A 613 604 5.13      
25 A 515 507 13.51      
26 A 463 456 2.88      
27 A 356 351 11.68      
28 A 343 338 88.39      
29 A 260 256 9.80      
30 A 182 179 3.75      

Unscaled Zero Point Vibrational Energy (zpe) 20198.2 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 19895.3 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/6-31+G**
ABC
0.15756 0.10223 0.06475

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.061 -1.257 -0.122
C2 -0.847 0.245 0.027
C3 -0.103 1.366 0.035
C4 1.348 1.095 -0.193
C5 1.578 -0.329 0.287
O6 -2.181 0.089 0.083
H7 -0.531 2.372 0.098
H8 2.013 1.791 0.349
H9 1.701 -0.354 1.385
H10 1.600 1.182 -1.273
H11 2.442 -0.821 -0.186
H12 -2.609 0.961 -0.020

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76142.63272.68181.82462.62273.68323.64972.40303.10472.42083.4727
C21.76141.34602.36442.50571.34352.15173.26732.94912.92513.46391.9025
C32.63271.34601.49332.40002.43941.09482.18052.83442.15513.36262.5398
C42.68182.36441.49331.52013.67952.29001.10482.17131.11222.20643.9634
C51.82462.50572.40001.52013.78713.43142.16481.10482.17151.10114.3920
O62.62271.34352.43943.67953.78712.81684.53344.11794.16244.71860.9770
H73.68322.15171.09482.29003.43142.81682.62093.75062.79914.37152.5152
H83.64973.26732.18051.10482.16484.53342.62092.40241.78122.70084.7106
H92.40302.94912.83442.17131.10484.11793.75062.40243.07121.79834.7204
H103.10472.92512.15511.11222.17154.16242.79911.78123.07122.42934.3974
H112.42083.46393.36262.20641.10114.71864.37152.70081.79832.42935.3586
H123.47271.90252.53983.96344.39200.97702.51524.71064.72044.39745.3586

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 115.174 S1 C2 O6 114.616
S1 C5 C4 106.252 S1 C5 H9 107.680
S1 C5 H11 109.157 C2 S1 C5 88.635
C2 C3 C4 112.659 C2 C3 H7 123.330
C2 O6 H12 109.124 C3 C2 O6 130.191
C3 C4 C5 105.582 C3 C4 H8 113.280
C3 C4 H10 110.764 C4 C3 H7 123.719
C4 C5 H9 110.629 C4 C5 H11 113.695
C5 C4 H8 110.117 C5 C4 H10 110.211
H8 C4 H10 106.920 H9 C5 H11 109.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.241      
2 C -0.092      
3 C -0.059      
4 C -0.403      
5 C -0.594      
6 O -0.443      
7 H 0.146      
8 H 0.188      
9 H 0.234      
10 H 0.199      
11 H 0.214      
12 H 0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.707 2.398 0.041 2.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.660 -5.147 0.989
y -5.147 -42.609 -0.299
z 0.989 -0.299 -45.988
Traceless
 xyz
x 6.639 -5.147 0.989
y -5.147 -0.785 -0.299
z 0.989 -0.299 -5.854
Polar
3z2-r2-11.708
x2-y24.950
xy-5.147
xz0.989
yz-0.299


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.498 0.383 -0.055
y 0.383 11.929 0.159
z -0.055 0.159 7.974


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