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All results from a given calculation for C4H6OS (2,5-dihydrothiophene-3-ol)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-628.121956
Energy at 298.15K-628.129163
HF Energy-627.309940
Nuclear repulsion energy287.873078
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 MP2/6-31G*
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 3738 3525 45.15      
2 A 3234 3050 9.71      
3 A 3179 2998 4.58      
4 A 3162 2982 9.89      
5 A 3126 2948 22.49      
6 A 3115 2937 30.60      
7 A 1764 1664 77.79      
8 A 1564 1475 2.69      
9 A 1555 1466 3.42      
10 A 1463 1379 4.12      
11 A 1337 1260 0.63      
12 A 1322 1246 47.72      
13 A 1262 1190 6.50      
14 A 1196 1128 194.04      
15 A 1183 1116 0.09      
16 A 1164 1098 4.46      
17 A 1059 999 12.80      
18 A 1018 960 0.29      
19 A 952 897 1.15      
20 A 914 862 0.75      
21 A 811 764 10.32      
22 A 753 710 51.06      
23 A 751 708 1.28      
24 A 618 583 0.81      
25 A 490 462 0.45      
26 A 472 445 5.95      
27 A 411 388 115.34      
28 A 383 361 13.41      
29 A 228 215 3.54      
30 A 38 36 4.26      

Unscaled Zero Point Vibrational Energy (zpe) 21130.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 19925.8 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 MP2/6-31G*
ABC
0.20036 0.07923 0.05802

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.544 -0.521 -0.000
C2 -0.159 -1.178 0.000
C3 -1.049 0.025 -0.000
C4 -0.471 1.235 -0.000
C5 1.023 1.246 0.000
O6 -2.381 -0.282 -0.000
H7 -0.340 -1.792 -0.887
H8 -1.028 2.170 -0.000
H9 1.433 1.740 0.887
H10 -0.340 -1.791 0.888
H11 1.433 1.740 -0.886
H12 -2.887 0.550 -0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.82622.65012.67341.84213.93242.43983.72262.43102.43982.43094.5592
C21.82621.49632.43342.69682.39531.09393.45893.44031.09393.44053.2293
C32.65011.49631.34082.40441.36682.14282.14493.14402.14283.14411.9119
C42.67342.43341.34081.49412.43873.15721.08792.16023.15702.16022.5110
C51.84212.69682.40441.49413.73053.44542.24921.09463.44511.09463.9712
O63.93242.39531.36682.43873.73052.68932.80044.40642.68944.40650.9743
H72.43981.09392.14283.15723.44542.68934.11794.33151.77503.95193.5722
H83.72263.45892.14491.08792.24922.80044.11792.65074.11772.65072.4658
H92.43103.44033.14402.16021.09464.40644.33152.65073.95121.77284.5678
H102.43981.09392.14283.15703.44512.68941.77504.11773.95124.33143.5727
H112.43093.44053.14412.16021.09464.40653.95192.65071.77284.33144.5676
H124.55923.22931.91192.51103.97120.97433.57222.46584.56783.57274.5676

picture of 2,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 105.377 S1 C2 H7 110.833
S1 C2 H10 110.836 S1 C5 C4 106.048
S1 C5 H9 109.081 S1 C5 H11 109.076
C2 S1 C5 94.641 C2 C3 C4 118.018
C2 C3 O6 113.485 C3 C2 H7 110.676
C3 C2 H10 110.675 C3 C4 C5 115.917
C3 C4 H8 123.720 C3 O6 H12 108.338
C4 C3 O6 128.497 C4 C5 H9 112.204
C4 C5 H11 112.206 C5 C4 H8 120.363
H7 C2 H10 108.447 H9 C5 H11 108.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability