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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-624.686807
Energy at 298.15K-624.694081
HF Energy-624.099183
Nuclear repulsion energy281.167108
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 QCISD/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 3163 3066 4.32      
2 A 3147 3050 1.14      
3 A 3116 3020 7.38      
4 A 3096 3000 11.15      
5 A 3092 2996 7.64      
6 A 3045 2951 3.98      
7 A 1702 1650 85.35      
8 A 1549 1501 3.03      
9 A 1525 1478 8.85      
10 A 1515 1468 9.67      
11 A 1366 1324 4.20      
12 A 1326 1285 14.57      
13 A 1267 1228 5.88      
14 A 1237 1198 8.83      
15 A 1210 1173 0.90      
16 A 1131 1096 4.82      
17 A 1092 1058 60.03      
18 A 993 962 6.68      
19 A 988 957 7.15      
20 A 881 854 6.93      
21 A 832 807 1.80      
22 A 739 716 1.04      
23 A 707 685 5.52      
24 A 626 607 1.41      
25 A 565 547 1.80      
26 A 463 449 4.77      
27 A 441 428 1.07      
28 A 414 401 5.79      
29 A 179 174 1.82      
30 A 43 42 10.35      

Unscaled Zero Point Vibrational Energy (zpe) 20724.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 20086.2 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 QCISD/3-21G
ABC
0.17936 0.07763 0.05730

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.199 -0.109 -0.031
C2 -0.548 1.265 -0.311
H3 -1.194 2.057 0.086
H4 -0.461 1.381 -1.403
C5 0.857 1.267 0.321
H6 0.815 1.394 1.407
H7 1.528 2.004 -0.127
C8 -0.153 -1.258 0.020
S9 1.589 -0.480 -0.071
H10 -0.288 -1.922 -0.840
O11 -2.413 -0.299 0.133
H12 -0.271 -1.826 0.948

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 H6 H7 C8 S9 H10 O11 H12
C11.54562.16862.15602.49822.89543.45071.55502.81332.18431.23932.1842
C21.54561.09681.10161.54032.19692.21112.57482.76963.24042.47383.3491
H32.16861.09681.79242.21042.49422.73103.47503.76954.18402.65254.0832
H42.15601.10161.79242.17263.08602.44343.01443.07303.35502.99893.9816
C52.49821.54032.21042.17261.09421.09272.73541.93433.58093.62973.3509
H62.89542.19692.49423.08601.09421.79743.14532.50914.15473.86123.4292
H73.45072.21112.73102.44341.09271.79743.67202.48534.38344.57134.3654
C81.55502.57483.47503.01442.73543.14533.67201.91001.09522.45751.0946
S92.81332.76963.76953.07301.93432.50912.48531.91002.48904.01122.5118
H102.18433.24044.18403.35503.58094.15474.38341.09522.48902.84471.7914
O111.23932.47382.65252.99893.62973.86124.57132.45754.01122.84472.7542
H122.18423.34914.08323.98163.35093.42924.36541.09462.51181.79142.7542

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 109.125 C1 C2 H4 107.892
C1 C2 C5 108.108 C1 C8 S9 108.135
C1 C8 H10 109.798 C1 C8 H12 109.823
C2 C1 C8 112.286 C2 C1 O11 124.955
C2 C5 H6 111.893 C2 C5 H7 113.133
C2 C5 S9 105.149 H3 C2 H4 109.241
H3 C2 C5 112.823 H4 C2 C5 109.528
C5 S9 C8 90.720 H6 C5 H7 110.548
H6 C5 S9 108.696 H7 C5 S9 107.075
C8 C1 O11 122.758 S9 C8 H10 108.795
S9 C8 H12 110.478 H10 C8 H12 109.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability