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All results from a given calculation for C4H6OS (4,5-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-628.116918
Energy at 298.15K-628.124168
HF Energy-627.301757
Nuclear repulsion energy288.850402
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 3763 3549 59.96      
2 A 3298 3110 5.29      
3 A 3210 3027 6.91      
4 A 3139 2960 28.57      
5 A 3126 2948 5.34      
6 A 3076 2901 29.02      
7 A 1734 1635 24.11      
8 A 1546 1457 2.06      
9 A 1529 1442 3.25      
10 A 1408 1328 106.90      
11 A 1363 1285 13.06      
12 A 1327 1251 64.28      
13 A 1274 1201 0.08      
14 A 1224 1154 16.89      
15 A 1194 1126 61.87      
16 A 1176 1109 29.33      
17 A 1051 991 2.90      
18 A 1031 972 0.97      
19 A 946 892 19.54      
20 A 854 805 30.84      
21 A 841 793 0.07      
22 A 778 734 36.13      
23 A 718 677 2.34      
24 A 552 521 3.24      
25 A 511 482 1.76      
26 A 444 419 10.66      
27 A 379 357 6.23      
28 A 268 252 81.34      
29 A 243 229 42.40      
30 A 179 169 8.58      

Unscaled Zero Point Vibrational Energy (zpe) 21088.5 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 19886.4 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 MP2/6-31G*
ABC
0.20227 0.07888 0.05896

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 -1.558 -0.538 -0.091
C2 0.102 -1.119 0.091
C3 1.028 -0.151 0.021
C4 0.483 1.232 -0.215
C5 -0.974 1.173 0.245
O6 2.379 -0.395 0.007
H7 0.299 -2.179 0.191
H8 1.035 1.995 0.349
H9 -1.616 1.876 -0.287
H10 0.561 1.486 -1.282
H11 -1.047 1.359 1.320
H12 2.840 0.426 0.247

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76822.61772.70501.83903.94142.49443.65232.42343.16412.41864.5158
C21.76821.34172.40152.53662.39101.08283.26133.47352.98052.99453.1479
C32.61771.34171.50532.41071.37332.16182.17083.34562.14372.87531.9152
C42.70502.40151.50531.52932.50903.44021.09792.19621.09922.17042.5344
C51.83902.53662.41071.52933.70983.58602.17391.09092.18831.09293.8873
O63.94142.39101.37332.50903.70982.74602.76394.60502.91634.06650.9719
H72.49441.08282.16183.44023.58602.74604.24154.51013.95883.94953.6391
H83.65233.26132.17081.09792.17392.76394.24152.72871.77262.38362.3944
H92.42343.47353.34562.19621.09094.60504.51012.72872.42491.78204.7166
H103.16412.98052.14371.09922.18832.91633.95881.77262.42493.06102.9422
H112.41862.99452.87532.17041.09294.06653.94952.38361.78203.06104.1387
H124.51583.14791.91522.53443.88730.97193.63912.39444.71662.94224.1387

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 113.942 S1 C2 H7 120.141
S1 C5 C4 106.485 S1 C5 H9 108.922
S1 C5 H11 108.469 C2 S1 C5 89.347
C2 C3 C4 114.911 C2 C3 O6 123.444
C3 C2 H7 125.831 C3 C4 C5 105.194
C3 C4 H8 112.059 C3 C4 H10 109.809
C3 O6 H12 108.281 C4 C3 C5 37.751
C4 C5 H9 112.824 C4 C5 H11 110.627
C5 C4 H8 110.596 C5 C4 H10 111.673
H8 C4 H10 107.563 H9 C5 H11 109.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability