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All results from a given calculation for C4H6OS (4,5-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-628.241384
Energy at 298.15K-628.248840
HF Energy-627.373374
Nuclear repulsion energy292.770750
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 3811 3622 47.99      
2 A 3220 3060 8.15      
3 A 3179 3021 11.49      
4 A 3130 2975 25.97      
5 A 3102 2948 18.74      
6 A 3049 2898 45.80      
7 A 1680 1597 136.79      
8 A 1528 1452 0.43      
9 A 1507 1432 5.79      
10 A 1414 1343 11.98      
11 A 1363 1295 15.13      
12 A 1334 1267 10.56      
13 A 1284 1220 23.25      
14 A 1211 1151 4.74      
15 A 1185 1126 3.09      
16 A 1165 1107 209.29      
17 A 1061 1008 14.87      
18 A 1030 978 16.46      
19 A 955 907 13.73      
20 A 896 852 2.85      
21 A 720 685 2.46      
22 A 703 668 46.25      
23 A 700 665 24.24      
24 A 630 599 6.32      
25 A 523 497 7.87      
26 A 478 454 3.82      
27 A 370 352 57.90      
28 A 365 347 64.37      
29 A 273 260 6.32      
30 A 189 179 3.27      

Unscaled Zero Point Vibrational Energy (zpe) 21026.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 19981.2 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
0.15657 0.10158 0.06442

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 0.052 -1.264 -0.127
C2 -0.845 0.254 0.023
C3 -0.098 1.373 0.017
C4 1.366 1.100 -0.186
C5 1.578 -0.343 0.296
O6 -2.189 0.100 0.090
H7 -0.515 2.376 0.065
H8 2.001 1.782 0.387
H9 1.707 -0.375 1.380
H10 1.643 1.198 -1.245
H11 2.425 -0.829 -0.190
H12 -2.594 0.972 0.024

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76932.64522.70441.83132.63203.68863.65272.40823.13702.41313.4676
C21.76931.34562.37592.51001.35412.14813.25112.95772.94773.45101.8907
C32.64521.34561.50282.41522.44881.08692.17072.85882.15723.35532.5274
C42.70442.37591.50281.53603.70232.28641.09472.17781.09882.20043.9668
C51.83132.51002.41521.53603.79803.43892.16951.09212.18011.09074.3825
O62.63201.35412.44883.70233.79802.82544.52494.13124.20334.71440.9642
H73.68862.14811.08692.28643.43892.82542.60493.77252.78554.35642.5086
H83.65273.25112.17071.09472.16954.52492.60492.39321.76942.70784.6798
H92.40822.95772.85882.17781.09214.13123.77252.39323.06041.78504.7063
H103.13702.94772.15721.09882.18014.20332.78551.76943.06042.41504.4284
H112.41313.45103.35532.20041.09074.71444.35642.70781.78502.41505.3364
H123.46761.89072.52743.96684.38250.96422.50864.67984.70634.42845.3364

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 115.580 S1 C2 O6 114.193
S1 C5 C4 106.535 S1 C5 H9 108.254
S1 C5 H11 108.683 C2 S1 C5 88.377
C2 C3 C4 112.935 C2 C3 H7 123.680
C2 O6 H12 108.098 C3 C2 O6 130.199
C3 C4 C5 105.267 C3 C4 H8 112.425
C3 C4 H10 111.084 C4 C3 H7 123.181
C4 C5 H9 110.791 C4 C5 H11 112.698
C5 C4 H8 109.977 C5 C4 H10 110.579
H8 C4 H10 107.537 H9 C5 H11 109.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability