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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-2-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-624.610380
Energy at 298.15K-624.617627
Nuclear repulsion energy284.543449
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 3507 3347 16.14      
2 A 3228 3081 6.53      
3 A 3219 3073 6.91      
4 A 3150 3006 19.27      
5 A 3132 2989 7.32      
6 A 3078 2938 27.32      
7 A 1669 1594 76.34      
8 A 1581 1509 1.69      
9 A 1557 1486 3.70      
10 A 1415 1350 20.80      
11 A 1385 1322 13.73      
12 A 1344 1283 5.62      
13 A 1303 1244 2.49      
14 A 1232 1176 3.20      
15 A 1200 1145 4.29      
16 A 1100 1050 188.38      
17 A 1045 998 8.43      
18 A 1008 962 43.19      
19 A 908 867 17.01      
20 A 876 837 3.02      
21 A 772 737 62.21      
22 A 672 641 2.65      
23 A 628 600 10.54      
24 A 607 579 11.99      
25 A 526 502 0.32      
26 A 453 433 2.14      
27 A 353 337 141.67      
28 A 337 321 9.84      
29 A 260 248 5.29      
30 A 146 139 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 20845.0 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 19896.6 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
0.14649 0.09613 0.06039

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 0.075 -1.324 -0.120
C2 -0.876 0.272 0.015
C3 -0.126 1.386 0.004
C4 1.370 1.154 -0.180
C5 1.656 -0.304 0.288
O6 -2.251 0.094 0.093
H7 -0.541 2.387 0.061
H8 1.966 1.854 0.416
H9 1.794 -0.348 1.369
H10 1.650 1.268 -1.236
H11 2.497 -0.761 -0.233
H12 -2.700 0.980 0.041

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.86252.72032.79671.92592.73243.76613.73712.47543.23182.48923.6096
C21.86251.34322.42112.61151.38902.14213.27783.05792.98953.53651.9562
C32.72031.34321.52542.47262.48901.08502.18322.92532.16953.39842.6056
C42.79672.42111.52541.55773.78352.28701.09552.19881.09822.22304.0795
C51.92592.61152.47261.55773.93283.48152.18391.09032.18941.08994.5479
O62.73241.38902.48903.78353.93282.86144.58194.26524.28564.83570.9943
H73.76612.14211.08502.28703.48152.86142.58763.82682.78094.38502.5772
H83.73713.27782.18321.09552.18394.58192.58762.40591.78032.74674.7619
H92.47543.05792.92532.19881.09034.26523.82682.40593.06861.79754.8705
H103.23182.98952.16951.09822.18944.28562.78091.78033.06862.41704.5424
H112.48923.53653.39842.22301.08994.83574.38502.74671.79752.41705.4873
H123.60961.95622.60564.07954.54790.99432.57724.76194.87054.54245.4873

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 115.158 S1 C2 O6 113.551
S1 C5 C4 106.322 S1 C5 H9 107.028
S1 C5 H11 108.024 C2 S1 C5 87.140
C2 C3 C4 114.989 C2 C3 H7 123.474
C2 O6 H12 109.205 C3 C2 O6 131.286
C3 C4 C5 106.639 C3 C4 H8 111.772
C3 C4 H10 110.511 C4 C3 H7 121.438
C4 C5 H9 111.039 C4 C5 H11 113.014
C5 C4 H8 109.566 C5 C4 H10 109.839
H8 C4 H10 108.496 H9 C5 H11 111.072
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 0.367      
2 C 0.055      
3 C -0.280      
4 C -0.435      
5 C -0.641      
6 O -0.675      
7 H 0.232      
8 H 0.232      
9 H 0.261      
10 H 0.236      
11 H 0.253      
12 H 0.396      


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