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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-3-ol)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-628.497042
Energy at 298.15K-628.504276
HF Energy-627.431095
Nuclear repulsion energy290.128395
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 MP2/Def2TZVPP
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 3859 3672 79.92      
2 A 3271 3112 4.98      
3 A 3181 3026 6.39      
4 A 3114 2963 22.55      
5 A 3095 2945 10.76      
6 A 3048 2900 32.93      
7 A 1697 1614 36.53      
8 A 1487 1415 4.36      
9 A 1472 1400 4.34      
10 A 1378 1312 120.54      
11 A 1315 1252 14.70      
12 A 1291 1228 38.00      
13 A 1244 1184 2.06      
14 A 1193 1136 14.41      
15 A 1164 1108 80.63      
16 A 1148 1093 12.97      
17 A 1015 966 1.47      
18 A 1008 959 2.47      
19 A 925 880 21.14      
20 A 839 799 25.82      
21 A 825 785 4.94      
22 A 800 761 26.06      
23 A 702 668 1.96      
24 A 546 520 3.26      
25 A 502 478 3.64      
26 A 449 427 10.15      
27 A 378 360 5.59      
28 A 269 256 56.09      
29 A 233 222 40.17      
30 A 182 174 6.42      

Unscaled Zero Point Vibrational Energy (zpe) 20815.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 19805.9 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 MP2/Def2TZVPP
ABC
0.20405 0.07957 0.05948

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.549 -0.536 -0.091
C2 0.102 -1.116 0.089
C3 1.024 -0.148 0.021
C4 0.477 1.229 -0.219
C5 -0.974 1.165 0.248
O6 2.371 -0.390 0.010
H7 0.305 -2.171 0.183
H8 1.029 1.993 0.333
H9 -1.624 1.869 -0.264
H10 0.545 1.467 -1.285
H11 -1.032 1.329 1.323
H12 2.820 0.428 0.243

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76002.60512.69011.82753.92402.48723.63632.41213.13472.39654.4866
C21.76001.33902.39492.52762.38311.07773.25383.46632.95962.96453.1293
C32.60511.33901.50072.40141.36812.15322.16343.34042.13112.84661.8986
C42.69012.39491.50071.52532.50193.42761.09232.19631.09442.15952.5189
C51.82752.52762.40141.52533.69593.57322.16871.08642.17941.08853.8645
O63.92402.38311.36812.50193.69592.73282.75374.59692.90834.03160.9615
H72.48721.07772.15323.42763.57322.73284.22904.49863.93023.91583.6165
H83.63633.25382.16341.09232.16872.75374.22902.72171.76832.38092.3803
H92.41213.46633.34042.19631.08644.59694.49862.72172.43061.77784.6988
H103.13472.95962.13111.09442.17942.90833.93021.76832.43063.05082.9307
H112.39652.96452.84662.15951.08854.03163.91582.38091.77783.05084.1003
H124.48663.12931.89862.51893.86450.96153.61652.38034.69882.93074.1003

picture of 4,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 113.719 S1 C2 H7 120.533
S1 C5 C4 106.358 S1 C5 H9 109.081
S1 C5 H11 107.832 C2 S1 C5 89.568
C2 C3 C4 114.879 C2 C3 O6 123.356
C3 C2 H7 125.647 C3 C4 C5 105.045
C3 C4 H8 112.132 C3 C4 H10 109.418
C3 O6 H12 107.898 C4 C3 C5 37.835
C4 C5 H9 113.414 C4 C5 H11 110.303
C5 C4 H8 110.805 C5 C4 H10 111.535
H8 C4 H10 107.933 H9 C5 H11 109.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability