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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-628.186042
Energy at 298.15K-628.193331
Nuclear repulsion energy288.919695
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 MP2/6-31+G**
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 3863 3633 66.50      
2 A 3317 3120 4.99      
3 A 3224 3033 7.95      
4 A 3155 2968 27.21      
5 A 3138 2952 11.28      
6 A 3089 2905 36.85      
7 A 1710 1608 32.75      
8 A 1525 1434 2.02      
9 A 1508 1418 4.05      
10 A 1394 1311 83.85      
11 A 1352 1272 8.76      
12 A 1308 1230 57.63      
13 A 1256 1181 1.04      
14 A 1207 1135 12.67      
15 A 1183 1113 88.15      
16 A 1160 1091 20.83      
17 A 1043 981 3.78      
18 A 1024 963 0.85      
19 A 941 885 20.05      
20 A 851 800 33.08      
21 A 837 787 0.64      
22 A 776 730 34.55      
23 A 713 670 2.13      
24 A 549 517 3.45      
25 A 511 480 2.49      
26 A 436 410 12.34      
27 A 381 359 14.78      
28 A 277 261 116.69      
29 A 249 235 3.05      
30 A 186 175 3.73      

Unscaled Zero Point Vibrational Energy (zpe) 21080.5 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 19828.4 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 MP2/6-31+G**
ABC
0.20241 0.07885 0.05896

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.554 -0.540 -0.092
C2 0.104 -1.117 0.091
C3 1.027 -0.141 0.028
C4 0.470 1.235 -0.229
C5 -0.977 1.163 0.257
O6 2.383 -0.387 -0.001
H7 0.312 -2.172 0.192
H8 1.021 2.016 0.301
H9 -1.628 1.877 -0.245
H10 0.522 1.454 -1.302
H11 -1.019 1.329 1.334
H12 2.848 0.394 0.325

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76542.61482.69541.83173.94072.49483.64972.42293.12212.41124.5199
C21.76541.34522.40162.52932.39451.07933.27153.47542.95402.96493.1418
C32.61481.34521.50612.40241.37782.15942.17423.34612.13702.83821.9213
C42.69542.40161.50611.52842.51763.43581.09342.19431.09642.16092.5825
C51.83172.52932.40241.52843.70933.57592.17341.08812.18191.09103.9028
O63.94072.39451.37782.51763.70932.74072.77834.61182.92274.03730.9665
H72.49481.07932.15943.43583.57592.74074.24884.51053.92693.91543.6108
H83.64973.27152.17421.09342.17342.77834.24882.70841.77092.38782.4431
H92.42293.47543.34612.19431.08814.61184.51052.70842.43271.77864.7498
H103.12212.95402.13701.09642.18192.92273.92691.77092.43273.05593.0305
H112.41122.96492.83822.16091.09104.03733.91542.38781.77863.05594.1048
H124.51993.14181.92132.58253.90280.96653.61082.44314.74983.03054.1048

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 113.721 S1 C2 H7 120.650
S1 C5 C4 106.327 S1 C5 H9 109.507
S1 C5 H11 108.507 C2 S1 C5 89.343
C2 C3 C4 114.650 C2 C3 O6 123.125
C3 C2 H7 125.556 C3 C4 C5 104.689
C3 C4 H8 112.559 C3 C4 H10 109.389
C3 O6 H12 108.818 C4 C3 C5 37.980
C4 C5 H9 112.912 C4 C5 H11 110.053
C5 C4 H8 110.896 C5 C4 H10 111.395
H8 C4 H10 107.936 H9 C5 H11 109.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.093      
2 C 0.009      
3 C -0.167      
4 C 0.036      
5 C -0.395      
6 O -0.573      
7 H 0.193      
8 H 0.130      
9 H 0.163      
10 H 0.165      
11 H 0.172      
12 H 0.361      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000