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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-2-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-628.188321
Energy at 298.15K-628.195707
Nuclear repulsion energy292.283999
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 3840 3612 59.02      
2 A 3274 3080 7.41      
3 A 3222 3030 9.55      
4 A 3169 2981 23.82      
5 A 3141 2955 17.39      
6 A 3086 2903 45.13      
7 A 1685 1584 124.67      
8 A 1534 1443 0.31      
9 A 1512 1422 3.62      
10 A 1394 1312 8.79      
11 A 1366 1285 16.72      
12 A 1330 1251 12.32      
13 A 1282 1206 24.54      
14 A 1209 1137 4.94      
15 A 1175 1105 0.20      
16 A 1148 1080 196.65      
17 A 1067 1004 14.01      
18 A 1033 972 21.26      
19 A 957 900 13.78      
20 A 900 846 1.70      
21 A 721 679 2.31      
22 A 708 666 52.67      
23 A 700 658 12.44      
24 A 634 597 5.19      
25 A 517 487 10.14      
26 A 479 451 3.43      
27 A 367 345 9.04      
28 A 323 304 93.63      
29 A 267 251 11.96      
30 A 181 170 3.06      

Unscaled Zero Point Vibrational Energy (zpe) 21110.2 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 19856.2 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 MP2/6-31+G**
ABC
0.15614 0.10116 0.06410

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 0.063 -1.262 -0.125
C2 -0.844 0.247 0.019
C3 -0.104 1.375 0.029
C4 1.359 1.102 -0.193
C5 1.581 -0.334 0.296
O6 -2.198 0.090 0.090
H7 -0.529 2.368 0.091
H8 2.005 1.789 0.356
H9 1.707 -0.350 1.379
H10 1.615 1.183 -1.257
H11 2.437 -0.813 -0.175
H12 -2.612 0.960 -0.015

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.76662.64672.69721.82812.64433.68473.64882.40773.10902.41633.4794
C21.76661.34872.37282.50861.36552.14573.25722.95192.92383.45341.9065
C32.64671.34871.50512.41462.45731.08222.17442.84242.15523.35962.5417
C42.69722.37281.50511.53333.70962.29101.09142.16871.09642.19803.9774
C51.82812.50862.41461.53333.80863.43432.16611.09072.17061.08854.3986
O62.64431.36552.45733.70963.80862.82394.54164.13614.18934.73020.9685
H73.68472.14571.08222.29103.43432.82392.61273.74802.79614.35772.5161
H83.64883.25722.17441.09142.16614.54162.61272.39021.76652.69134.7051
H92.40772.95192.84242.16871.09074.13613.74802.39023.05041.77894.7233
H103.10902.92382.15521.09642.17064.18932.79611.76653.05042.41424.4109
H112.41633.45343.35962.19801.08854.73024.35772.69131.77892.41425.3535
H123.47941.90652.54173.97744.39860.96852.51614.70514.72334.41095.3535

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 115.680 S1 C2 O6 114.575
S1 C5 C4 106.387 S1 C5 H9 108.496
S1 C5 H11 109.241 C2 S1 C5 88.494
C2 C3 C4 112.378 C2 C3 H7 123.565
C2 O6 H12 108.340 C3 C2 O6 129.741
C3 C4 C5 105.247 C3 C4 H8 112.773
C3 C4 H10 110.900 C4 C3 H7 123.796
C4 C5 H9 110.334 C4 C5 H11 112.830
C5 C4 H8 110.091 C5 C4 H10 110.146
H8 C4 H10 107.691 H9 C5 H11 109.425
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 0.153      
2 C -0.042      
3 C -0.141      
4 C -0.170      
5 C -0.396      
6 O -0.542      
7 H 0.154      
8 H 0.138      
9 H 0.173      
10 H 0.143      
11 H 0.160      
12 H 0.370      


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