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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-629.171930
Energy at 298.15K-629.165027
HF Energy-629.446183
Nuclear repulsion energy291.417210
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/6-31G(2df,p)
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 3800 3667 45.67      
2 A 3186 3075 10.26      
3 A 3133 3023 10.98      
4 A 3071 2963 37.87      
5 A 3050 2944 13.93      
6 A 2988 2884 52.99      
7 A 1694 1635 139.22      
8 A 1496 1444 1.34      
9 A 1476 1424 1.52      
10 A 1384 1335 15.48      
11 A 1332 1285 21.05      
12 A 1292 1247 7.18      
13 A 1269 1224 20.97      
14 A 1186 1144 2.72      
15 A 1148 1108 0.70      
16 A 1142 1102 185.98      
17 A 1038 1002 14.74      
18 A 997 962 13.79      
19 A 923 891 12.90      
20 A 860 830 1.39      
21 A 736 710 36.61      
22 A 691 667 2.95      
23 A 679 655 13.76      
24 A 626 604 5.93      
25 A 539 521 0.92      
26 A 469 453 2.76      
27 A 361 349 11.22      
28 A 351 339 87.62      
29 A 252 243 6.45      
30 A 151 146 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 20659.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19936.7 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/6-31G(2df,p)
ABC
0.15550 0.10056 0.06336

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.059 -1.269 -0.107
C2 -0.857 0.249 0.020
C3 -0.121 1.365 0.023
C4 1.356 1.127 -0.159
C5 1.613 -0.340 0.244
O6 -2.199 0.090 0.074
H7 -0.551 2.360 0.074
H8 1.972 1.794 0.455
H9 1.814 -0.423 1.314
H10 1.656 1.295 -1.205
H11 2.431 -0.803 -0.308
H12 -2.614 0.958 0.013

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.77752.64392.72571.84412.64113.68413.65512.41193.21482.42653.4814
C21.77751.33732.38822.54891.35182.13353.25283.04362.98533.46841.8948
C32.64391.33731.50762.44172.43831.08432.17952.93412.16153.36562.5262
C42.72572.38821.50761.54293.71052.28261.09592.18711.10052.21453.9779
C51.84412.54892.44171.54293.83913.46362.17451.09272.18481.09064.4277
O62.64111.35182.43833.71053.83912.80484.52124.23124.23654.73090.9645
H73.68412.13351.08432.28263.46362.80482.61313.85662.76364.36372.4951
H83.65513.25282.17951.09592.17454.52122.61312.38291.76162.74584.6825
H92.41193.04362.93412.18711.09274.23123.85662.38293.05331.77714.8178
H103.21482.98532.16151.10052.18484.23652.76361.76163.05332.41004.4535
H112.42653.46843.36562.21451.09064.73094.36372.74581.77712.41005.3539
H123.48141.89482.52623.97794.42770.96452.49514.68254.81784.45355.3539

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 115.377 S1 C2 O6 114.395
S1 C5 C4 107.072 S1 C5 H9 107.905
S1 C5 H11 108.942 C2 S1 C5 89.610
C2 C3 C4 114.158 C2 C3 H7 123.347
C2 O6 H12 109.053 C3 C2 O6 130.214
C3 C4 C5 106.199 C3 C4 H8 112.607
C3 C4 H10 110.907 C4 C3 H7 122.339
C4 C5 H9 110.895 C4 C5 H11 113.070
C5 C4 H8 109.864 C5 C4 H10 110.490
H8 C4 H10 106.817 H9 C5 H11 108.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability