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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-624.617319
Energy at 298.15K-624.624539
Nuclear repulsion energy281.041232
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 MP2/3-21G
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 3519 3359 12.08      
2 A 3212 3066 8.14      
3 A 3199 3053 4.18      
4 A 3181 3036 8.17      
5 A 3142 2999 11.98      
6 A 3127 2984 19.97      
7 A 1705 1627 50.36      
8 A 1578 1506 1.65      
9 A 1569 1497 5.65      
10 A 1455 1389 1.00      
11 A 1318 1258 7.84      
12 A 1294 1235 5.93      
13 A 1257 1200 5.47      
14 A 1202 1147 0.12      
15 A 1190 1136 2.87      
16 A 1136 1085 193.28      
17 A 1023 977 23.78      
18 A 972 927 0.93      
19 A 905 864 0.08      
20 A 874 834 0.28      
21 A 800 764 64.67      
22 A 734 701 16.24      
23 A 688 657 1.93      
24 A 581 555 0.05      
25 A 484 462 1.57      
26 A 469 448 0.35      
27 A 413 394 143.72      
28 A 363 346 13.69      
29 A 241 230 3.93      
30 A 84 80 3.53      

Unscaled Zero Point Vibrational Energy (zpe) 20855.8 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 19906.9 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 MP2/3-21G
ABC
0.19158 0.07503 0.05505

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.613 -0.529 -0.000
C2 0.179 -1.203 0.000
C3 1.071 0.022 -0.000
C4 0.500 1.239 -0.000
C5 -1.010 1.311 0.000
O6 2.432 -0.303 -0.000
H7 0.342 -1.805 0.895
H8 1.069 2.165 -0.000
H9 -1.409 1.792 -0.895
H10 0.342 -1.805 -0.895
H11 -1.409 1.792 0.896
H12 2.969 0.533 0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.91392.73922.75531.93604.05132.49993.80122.49632.49992.49634.7030
C21.91391.51482.46292.78032.42641.09113.48303.50591.09113.50573.2858
C32.73921.51481.34412.44731.40002.16102.14263.17532.16103.17511.9659
C42.75532.46291.34411.51202.47203.17711.08642.17993.17712.17992.5676
C51.93602.78032.44731.51203.80183.51242.24791.09203.51251.09204.0542
O64.05132.42641.40002.47203.80182.72532.81894.46602.72524.46580.9932
H72.49991.09112.16103.17713.51242.72534.13394.38301.78984.00053.6285
H83.80123.48302.14261.08642.24792.81894.13392.66104.13382.66122.5041
H92.49633.50593.17532.17991.09204.46604.38302.66104.00081.79084.6426
H102.49991.09112.16103.17713.51252.72521.78984.13384.00084.38293.6291
H112.49633.50573.17512.17991.09204.46584.00052.66121.79084.38294.6420
H124.70303.28581.96592.56764.05420.99323.62852.50414.64263.62914.6420

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 105.456 S1 C2 H7 109.528
S1 C2 H10 109.525 S1 C5 C4 105.426
S1 C5 H9 107.779 S1 C5 H11 107.776
C2 S1 C5 92.467 C2 C3 C4 118.840
C2 C3 O6 112.640 C3 C2 H7 111.005
C3 C2 H10 111.006 C3 C4 C5 117.812
C3 C4 H8 123.309 C3 O6 H12 109.281
C4 C3 O6 128.520 C4 C5 H9 112.677
C4 C5 H11 112.678 C5 C4 H8 118.879
H7 C2 H10 110.204 H9 C5 H11 110.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.248      
2 C -0.689      
3 C 0.383      
4 C -0.284      
5 C -0.658      
6 O -0.689      
7 H 0.275      
8 H 0.233      
9 H 0.256      
10 H 0.275      
11 H 0.256      
12 H 0.393      


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