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

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-628.240055
Energy at 298.15K-628.247474
HF Energy-627.372349
Nuclear repulsion energy295.993968
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 MP2/6-311G*
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 3829 3639 32.27      
2 A 3256 3094 7.52      
3 A 3230 3069 0.43      
4 A 3152 2996 6.65      
5 A 3094 2941 45.19      
6 A 3069 2917 11.28      
7 A 1623 1542 6.39      
8 A 1495 1421 5.68      
9 A 1418 1348 11.25      
10 A 1367 1299 13.81      
11 A 1348 1281 32.58      
12 A 1308 1243 48.19      
13 A 1250 1188 30.97      
14 A 1207 1147 31.94      
15 A 1133 1077 2.75      
16 A 1090 1036 65.49      
17 A 1034 983 7.47      
18 A 958 911 20.01      
19 A 906 861 24.59      
20 A 885 841 0.22      
21 A 835 793 28.28      
22 A 797 757 27.96      
23 A 680 646 18.98      
24 A 651 619 45.33      
25 A 579 550 0.55      
26 A 430 409 9.36      
27 A 380 361 5.13      
28 A 360 342 25.70      
29 A 272 259 147.99      
30 A 151 143 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 20893.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 19855.5 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 MP2/6-311G*
ABC
0.13243 0.11535 0.07583

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.483 -1.237 0.226
C2 0.937 -0.064 0.407
C3 0.311 1.322 0.542
C4 -0.975 1.299 -0.234
C5 -1.465 0.069 -0.442
O6 1.759 -0.035 -0.733
H7 1.485 -0.370 1.305
H8 1.028 2.052 0.155
H9 -1.474 2.206 -0.561
H10 -2.388 -0.185 -0.951
H11 0.122 1.552 1.598
H12 2.038 -0.935 -0.930

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.85082.69762.62401.76482.71812.40613.62053.66852.47433.16672.7893
C21.85081.52622.43422.55121.40541.09542.13313.45033.59412.16661.9387
C32.69761.52621.50232.38612.35812.19551.09402.27733.43291.09783.1999
C42.62402.43421.50231.34083.08303.34732.17531.08582.17092.15013.8152
C51.76482.55122.38611.34083.23863.45633.24162.14121.08422.98013.6763
O62.71811.40542.35813.08303.23862.08322.38363.93794.15573.26070.9626
H72.40611.09542.19553.34733.45632.08322.71974.34434.48612.37412.3708
H83.62052.13311.09402.17533.24162.38362.71972.60714.23081.77553.3353
H93.66853.45032.27731.08582.14123.93794.34432.60712.58952.76334.7265
H102.47433.59413.43292.17091.08424.15574.48614.23082.58953.97664.4895
H113.16672.16661.09782.15012.98013.26072.37411.77552.76333.97664.0309
H122.78931.93873.19993.81523.67630.96262.37083.33534.72654.48954.0309

picture of 2,3-dihydrothiophene-2-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 105.632 S1 C2 O6 112.458
S1 C2 H7 106.678 S1 C5 C4 114.637
S1 C5 H10 118.604 C2 S1 C5 89.722
C2 C3 C4 106.981 C2 C3 H8 107.862
C2 C3 H11 110.256 C2 O6 H12 108.454
C3 C2 O6 107.027 C3 C2 H7 112.716
C3 C4 C5 114.002 C3 C4 H9 122.439
C4 C3 H8 112.883 C4 C3 H11 110.606
C4 C5 H10 126.749 C5 C4 H9 123.524
O6 C2 H7 112.220 H8 C3 H11 108.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability