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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-628.187953
Energy at 298.15K-628.195387
HF Energy-627.304474
Nuclear repulsion energy292.012541
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 MP3=FULL/6-31G*
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 3804 3570 46.55      
2 A 3253 3053 7.88      
3 A 3207 3009 9.87      
4 A 3149 2954 35.89      
5 A 3136 2943 5.68      
6 A 3080 2890 38.82      
7 A 1766 1657 120.54      
8 A 1562 1465 0.32      
9 A 1541 1446 2.87      
10 A 1439 1350 12.10      
11 A 1390 1304 15.50      
12 A 1355 1271 8.11      
13 A 1311 1230 25.05      
14 A 1235 1159 2.53      
15 A 1198 1124 10.20      
16 A 1196 1122 201.30      
17 A 1081 1014 11.37      
18 A 1043 979 12.24      
19 A 964 904 11.28      
20 A 903 848 1.58      
21 A 750 704 47.90      
22 A 729 684 4.06      
23 A 707 663 10.54      
24 A 647 607 5.44      
25 A 542 509 0.78      
26 A 487 457 3.52      
27 A 370 347 9.68      
28 A 339 318 115.09      
29 A 265 248 9.42      
30 A 169 158 2.26      

Unscaled Zero Point Vibrational Energy (zpe) 21308.2 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 19993.5 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 MP3=FULL/6-31G*
ABC
0.15585 0.10104 0.06384

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.063 -1.269 -0.112
C2 -0.851 0.247 0.017
C3 -0.120 1.368 0.016
C4 1.356 1.124 -0.163
C5 1.597 -0.339 0.258
O6 -2.196 0.088 0.080
H7 -0.546 2.366 0.065
H8 1.966 1.794 0.452
H9 1.794 -0.404 1.331
H10 1.653 1.281 -1.209
H11 2.428 -0.796 -0.283
H12 -2.616 0.960 0.034

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.77472.64582.72041.83172.64203.68973.65002.41363.19872.41773.4879
C21.77471.33802.38182.52931.35522.14163.24343.02462.97353.45381.9035
C32.64581.33801.50652.43362.43881.08652.17342.92122.15663.35582.5290
C42.72042.38181.50651.54193.70742.28241.09522.18161.09862.20233.9801
C51.83172.52932.43361.54193.82123.45682.17411.09282.18611.09104.4149
O62.64201.35522.43883.70743.82122.81264.51294.21004.23014.72120.9687
H73.68972.14161.08652.28243.45682.81262.60463.84092.76284.35432.5030
H83.65003.24342.17341.09522.17414.51292.60462.37411.76652.73204.6759
H92.41363.02462.92122.18161.09284.21003.84092.37413.05111.77734.7949
H103.19872.97352.15661.09862.18614.23012.76281.76653.05112.40214.4578
H112.41773.45383.35582.20231.09104.72124.35432.73201.77732.40215.3501
H123.48791.90352.52903.98014.41490.96872.50304.67594.79494.45785.3501

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 115.712 S1 C2 O6 114.487
S1 C5 C4 107.178 S1 C5 H9 108.590
S1 C5 H11 108.980 C2 S1 C5 89.054
C2 C3 C4 113.584 C2 C3 H7 123.763
C2 O6 H12 108.851 C3 C2 O6 129.792
C3 C4 C5 105.933 C3 C4 H8 112.350
C3 C4 H10 110.775 C4 C3 H7 122.510
C4 C5 H9 110.638 C4 C5 H11 112.412
C5 C4 H8 109.910 C5 C4 H10 110.648
H8 C4 H10 107.266 H9 C5 H11 108.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability