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All results from a given calculation for C4H6OS (2,5-dihydrothiophene-3-ol)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-626.193080
Energy at 298.15K-626.200285
Nuclear repulsion energy282.346222
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3505 3382 8.28      
2 A 3193 3081 10.98      
3 A 3148 3037 5.58      
4 A 3126 3016 10.47      
5 A 3099 2990 17.43      
6 A 3081 2973 28.93      
7 A 1728 1668 74.87      
8 A 1537 1483 1.53      
9 A 1529 1475 6.69      
10 A 1443 1392 0.88      
11 A 1295 1250 11.14      
12 A 1274 1229 5.81      
13 A 1239 1196 5.18      
14 A 1188 1146 0.01      
15 A 1170 1129 2.95      
16 A 1138 1098 203.94      
17 A 1022 986 27.12      
18 A 944 910 1.68      
19 A 877 846 0.24      
20 A 876 845 0.08      
21 A 806 777 67.60      
22 A 734 709 16.92      
23 A 685 661 2.56      
24 A 577 557 0.04      
25 A 491 474 1.87      
26 A 469 453 0.53      
27 A 412 397 136.03      
28 A 362 349 12.65      
29 A 236 228 4.99      
30 A 91 87 3.76      

Unscaled Zero Point Vibrational Energy (zpe) 20636.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 19911.7 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/3-21G
ABC
0.19336 0.07581 0.05561

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.607 -0.525 -0.000
C2 0.177 -1.197 0.000
C3 1.069 0.020 -0.000
C4 0.501 1.230 -0.000
C5 -1.000 1.307 0.000
O6 2.415 -0.302 -0.000
H7 0.338 -1.804 0.893
H8 1.071 2.152 -0.000
H9 -1.403 1.790 -0.894
H10 0.339 -1.805 -0.892
H11 -1.403 1.790 0.894
H12 2.965 0.526 0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.90582.73032.74211.92964.02812.49353.78672.48982.49352.48984.6908
C21.90581.50922.44812.76692.41101.09183.46683.49531.09183.49493.2777
C32.73031.50921.33582.43651.38462.15872.13203.16862.15883.16831.9625
C42.74212.44811.33581.50322.45153.16671.08502.17653.16682.17652.5626
C51.92962.76692.43651.50323.77563.50282.23761.09303.50311.09304.0415
O64.02812.41101.38462.45153.77562.71462.79804.44452.71444.44420.9936
H72.49351.09182.15873.16673.50282.71464.12194.37541.78553.99343.6228
H83.78673.46682.13201.08502.23762.79804.12192.65554.12202.65572.4962
H92.48983.49533.16862.17651.09304.44454.37542.65553.99431.78834.6343
H102.49351.09182.15883.16683.50312.71441.78554.12203.99434.37533.6233
H112.48983.49493.16832.17651.09304.44423.99342.65571.78834.37534.6337
H124.69083.27771.96252.56264.04150.99363.62282.49624.63433.62334.6337

picture of 2,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 105.581 S1 C2 H7 109.564
S1 C2 H10 109.560 S1 C5 C4 105.355
S1 C5 H9 107.683 S1 C5 H11 107.681
C2 S1 C5 92.339 C2 C3 C4 118.611
C2 C3 O6 112.780 C3 C2 H7 111.173
C3 C2 H10 111.173 C3 C4 C5 118.113
C3 C4 H8 123.119 C3 O6 H12 110.136
C4 C3 O6 128.608 C4 C5 H9 112.985
C4 C5 H11 112.985 C5 C4 H8 118.768
H7 C2 H10 109.702 H9 C5 H11 109.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.244      
2 C -0.658      
3 C 0.313      
4 C -0.204      
5 C -0.639      
6 O -0.569      
7 H 0.250      
8 H 0.184      
9 H 0.236      
10 H 0.250      
11 H 0.236      
12 H 0.359      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.235 2.071 0.003 3.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.845 1.810 0.006
y 1.810 -39.113 0.001
z 0.006 0.001 -45.137
Traceless
 xyz
x -0.720 1.810 0.006
y 1.810 4.878 0.001
z 0.006 0.001 -4.158
Polar
3z2-r2-8.317
x2-y2-3.732
xy1.810
xz0.006
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.787 -0.518 0.001
y -0.518 9.672 0.000
z 0.001 0.000 4.427


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