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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-2-ol)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-628.311192
Energy at 298.15K-628.318586
HF Energy-627.406680
Nuclear repulsion energy292.406006
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/TZVP
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 3827 3627 57.95      
2 A 3241 3072 7.45      
3 A 3193 3026 10.89      
4 A 3137 2974 25.08      
5 A 3112 2950 16.90      
6 A 3056 2897 44.52      
7 A 1675 1588 127.21      
8 A 1512 1433 0.20      
9 A 1488 1410 3.87      
10 A 1395 1322 7.81      
11 A 1360 1289 17.08      
12 A 1326 1257 8.46      
13 A 1275 1209 19.54      
14 A 1202 1139 2.91      
15 A 1174 1113 0.07      
16 A 1149 1089 201.87      
17 A 1058 1003 15.30      
18 A 1023 970 19.35      
19 A 952 902 14.24      
20 A 891 845 1.67      
21 A 714 677 46.11      
22 A 712 675 5.32      
23 A 694 657 11.75      
24 A 629 596 4.92      
25 A 503 477 9.61      
26 A 473 448 2.92      
27 A 369 350 9.63      
28 A 327 310 90.33      
29 A 270 256 9.65      
30 A 184 175 2.97      

Unscaled Zero Point Vibrational Energy (zpe) 20959.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 19867.8 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/TZVP
ABC
0.15586 0.10140 0.06417

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.055 -1.271 -0.115
C2 -0.848 0.252 0.021
C3 -0.106 1.369 0.022
C4 1.359 1.112 -0.176
C5 1.588 -0.339 0.270
O6 -2.191 0.099 0.079
H7 -0.524 2.367 0.070
H8 1.978 1.784 0.422
H9 1.764 -0.385 1.345
H10 1.645 1.241 -1.226
H11 2.420 -0.804 -0.253
H12 -2.594 0.974 0.029

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.77542.64792.71751.83482.63833.68783.64912.41553.17282.41483.4753
C21.77541.34072.37732.51911.35312.14003.23932.99682.95713.44581.8895
C32.64791.34071.50102.41862.44151.08292.16252.88532.15373.34412.5185
C42.71752.37731.50101.53583.70102.27611.09142.17241.09542.19243.9608
C51.83482.51912.41861.53583.80943.43842.16371.08972.17631.08774.3899
O62.63831.35312.44153.70103.80942.81424.50954.18084.20934.71110.9645
H73.68782.14001.08292.27613.43842.81422.59303.79922.76584.33942.4947
H83.64913.23932.16251.09142.16374.50952.59302.36671.76712.71134.6593
H92.41552.99682.88532.17241.08974.18083.79922.36673.04371.77734.7506
H103.17282.95712.15371.09542.17634.20932.76581.76713.04372.39384.4284
H112.41483.44583.34412.19241.08774.71114.33942.71131.77732.39385.3279
H123.47531.88952.51853.96084.38990.96452.49474.65934.75064.42845.3279

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 115.666 S1 C2 O6 114.303
S1 C5 C4 107.126 S1 C5 H9 108.682
S1 C5 H11 108.735 C2 S1 C5 88.481
C2 C3 C4 113.444 C2 C3 H7 123.663
C2 O6 H12 108.053 C3 C2 O6 130.015
C3 C4 C5 105.577 C3 C4 H8 112.093
C3 C4 H10 111.138 C4 C3 H7 122.676
C4 C5 H9 110.524 C4 C5 H11 112.250
C5 C4 H8 109.735 C5 C4 H10 110.494
H8 C4 H10 107.816 H9 C5 H11 109.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability