return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H6OS (Dihydro-2-(3H)-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-624.696427
Energy at 298.15K-624.703870
HF Energy-624.103969
Nuclear repulsion energy283.081733
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 3158 3060 6.50      
2 A 3114 3018 8.50      
3 A 3104 3008 12.86      
4 A 3089 2993 8.30      
5 A 3056 2962 14.09      
6 A 3039 2945 4.80      
7 A 1733 1679 227.83      
8 A 1558 1510 2.32      
9 A 1547 1500 7.00      
10 A 1528 1481 8.09      
11 A 1409 1365 0.08      
12 A 1365 1323 12.48      
13 A 1334 1293 8.72      
14 A 1287 1248 1.76      
15 A 1214 1176 3.60      
16 A 1161 1126 3.52      
17 A 1049 1017 2.65      
18 A 1034 1002 3.00      
19 A 1009 978 71.11      
20 A 891 863 16.20      
21 A 876 849 5.37      
22 A 836 810 33.18      
23 A 639 619 3.82      
24 A 589 571 3.68      
25 A 545 528 46.87      
26 A 469 455 4.34      
27 A 442 428 1.91      
28 A 368 356 5.29      
29 A 240 232 1.64      
30 A 106 103 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 20893.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 20249.7 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
0.13690 0.09895 0.06075

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 -0.185 1.439 0.222
H2 -0.675 2.282 -0.280
H3 -0.137 1.647 1.304
C4 1.231 1.143 -0.326
H5 1.953 1.903 0.002
H6 1.202 1.130 -1.424
C7 1.648 -0.262 0.190
H8 1.906 -0.238 1.253
H9 2.463 -0.697 -0.394
C10 -1.053 0.180 0.025
O11 -2.270 0.114 -0.070
S12 0.100 -1.371 -0.035

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 O11 S12
C11.09711.10221.54672.19812.17482.50042.87213.45741.54212.48792.8365
H21.09711.78932.22112.66972.48223.47693.92024.32882.15782.70003.7428
H31.10221.78932.18662.47563.08262.84052.78043.89042.15002.96363.3099
C41.54672.22112.18661.09821.09881.55342.20422.21562.50323.65792.7722
H52.19812.66972.47561.09821.78742.19452.48112.67943.46434.58643.7624
H62.17482.48223.08261.09881.78742.17743.08842.44752.84393.86273.0658
C72.50043.47692.84051.55342.19452.17741.09481.09312.74123.94401.9176
H82.87213.92022.78042.20422.48113.08841.09481.79823.23064.39462.4912
H93.45744.32883.89042.21562.67942.44751.09311.79823.64774.81272.4834
C101.54212.15782.15002.50323.46432.84392.74123.23063.64771.22261.9334
O112.48792.70002.96363.65794.58643.86273.94404.39464.81271.22262.7967
S122.83653.74283.30992.77223.76243.06581.91762.49122.48341.93342.7967

picture of Dihydro-2-(3H)-thiophenone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 111.288 C1 C4 H6 109.417
C1 C4 C7 107.519 C1 C10 O11 127.914
C1 C10 S12 108.882 H2 C1 H3 108.896
H2 C1 C4 113.210 H2 C1 C10 108.514
H3 C1 C4 110.148 H3 C1 C10 107.636
C4 C1 C10 108.275 C4 C7 H8 111.503
C4 C7 H9 112.520 C4 C7 S12 105.527
H5 C4 H6 108.893 H5 C4 C7 110.533
H6 C4 C7 109.156 C7 S12 C10 90.764
H8 C7 H9 110.554 H8 C7 S12 108.478
H9 C7 S12 107.999 O11 C10 S12 123.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability