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All results from a given calculation for C4H6OS (Dihydro-3-(2H)-thiophenone)

using model chemistry: MP2/CEP-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/CEP-31G*
 hartrees
Energy at 0K-51.851736
Energy at 298.15K-51.859175
HF Energy-51.075366
Nuclear repulsion energy120.179592
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/CEP-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 3200 3038 13.54      
2 A 3193 3032 2.76      
3 A 3187 3026 4.87      
4 A 3115 2958 31.95      
5 A 3108 2951 15.20      
6 A 3106 2949 9.43      
7 A 1771 1681 159.63      
8 A 1519 1443 2.55      
9 A 1477 1402 13.03      
10 A 1476 1401 6.52      
11 A 1336 1268 6.92      
12 A 1328 1261 21.59      
13 A 1263 1199 33.52      
14 A 1245 1182 4.42      
15 A 1190 1130 18.15      
16 A 1175 1116 18.41      
17 A 1121 1065 3.85      
18 A 1017 966 7.87      
19 A 993 942 2.10      
20 A 898 853 7.83      
21 A 859 815 0.38      
22 A 813 772 1.18      
23 A 749 711 6.85      
24 A 708 672 1.05      
25 A 560 531 3.10      
26 A 483 458 3.91      
27 A 443 421 3.15      
28 A 426 405 5.76      
29 A 201 191 1.93      
30 A 63 60 11.87      

Unscaled Zero Point Vibrational Energy (zpe) 21011.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19948.6 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/CEP-31G*
ABC
0.18538 0.08057 0.05959

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.177 -0.084 -0.020
C2 -0.512 1.288 -0.233
H3 -1.123 2.072 0.246
H4 -0.477 1.474 -1.322
C5 0.918 1.185 0.333
H6 0.923 1.289 1.432
H7 1.602 1.931 -0.103
C8 -0.135 -1.219 0.158
S9 1.516 -0.492 -0.152
H10 -0.351 -2.028 -0.559
O11 -2.396 -0.285 0.016
H12 -0.225 -1.617 1.185

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 H6 H7 C8 S9 H10 O11 H12
C11.53962.17272.14772.47392.89803.43321.55092.72722.18031.23602.1699
C21.53961.10341.10521.54092.19782.21292.56542.69983.33612.46723.2457
H32.17271.10341.79862.22682.49082.75063.43713.70104.24902.68853.9112
H42.14771.10521.79862.18353.09502.45293.09173.03443.58622.92693.9878
C52.47391.54092.22682.18351.10401.10222.63001.84513.56743.63863.1434
H62.89802.19782.49083.09501.10401.79713.00512.45574.07263.93613.1339
H73.43322.21292.75062.45291.10221.79713.60662.42494.43784.57234.1933
C81.55092.56543.43713.09172.63003.00513.60661.83091.10232.45011.1050
S92.72722.69983.70103.03441.84512.45572.42491.83092.45193.92132.4664
H102.18033.33614.24903.58623.56744.07264.43781.10232.45192.74811.7960
O111.23602.46722.68852.92693.63863.93614.57232.45013.92132.74812.8026
H122.16993.24573.91123.98783.14343.13394.19331.10502.46641.79602.8026

picture of Dihydro-3-(2H)-thiophenone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 109.471 C1 C2 H4 107.452
C1 C2 C5 106.851 C1 C8 S9 107.208
C1 C8 H10 109.357 C1 C8 H12 108.407
C2 C1 C8 112.212 C2 C1 O11 125.108
C2 C5 H6 111.328 C2 C5 H7 112.645
C2 C5 S9 105.403 H3 C2 H4 109.045
H3 C2 C5 113.699 H4 C2 C5 110.124
C5 S9 C8 91.361 H6 C5 H7 109.090
H6 C5 S9 110.209 H7 C5 S9 108.060
C8 C1 O11 122.680 S9 C8 H10 110.972
S9 C8 H12 111.913 H10 C8 H12 108.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability