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-3-(2H)-thiophenone)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-627.755380
Energy at 298.15K-627.762678
HF Energy-627.220645
Nuclear repulsion energy280.048562
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/SDD
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 3170 3060 11.28      
2 A 3154 3044 2.93      
3 A 3124 3016 10.75      
4 A 3084 2977 30.04      
5 A 3073 2966 14.11      
6 A 3042 2936 9.95      
7 A 1594 1538 94.72      
8 A 1509 1456 2.61      
9 A 1484 1432 15.24      
10 A 1481 1430 7.09      
11 A 1360 1313 11.44      
12 A 1342 1295 8.03      
13 A 1289 1245 14.12      
14 A 1236 1193 7.54      
15 A 1190 1149 1.05      
16 A 1148 1108 56.54      
17 A 1116 1077 3.47      
18 A 1011 976 0.48      
19 A 1009 974 13.32      
20 A 909 877 7.37      
21 A 864 834 0.48      
22 A 754 728 0.40      
23 A 714 690 5.44      
24 A 637 615 0.40      
25 A 551 532 2.22      
26 A 467 451 4.56      
27 A 432 417 0.02      
28 A 415 401 8.62      
29 A 175 169 1.77      
30 A 59 57 12.28      

Unscaled Zero Point Vibrational Energy (zpe) 20695.8 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 19977.7 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 MP2/SDD
ABC
0.17852 0.07701 0.05675

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.192 -0.097 -0.018
C2 -0.545 1.292 -0.242
H3 -1.166 2.073 0.230
H4 -0.520 1.470 -1.335
C5 0.904 1.250 0.314
H6 0.926 1.380 1.408
H7 1.566 1.984 -0.169
C8 -0.156 -1.250 0.120
S9 1.577 -0.498 -0.124
H10 -0.341 -2.013 -0.652
O11 -2.441 -0.300 0.041
H12 -0.243 -1.704 1.121

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 H6 H7 C8 S9 H10 O11 H12
C11.54892.18382.15452.51412.94993.45861.55652.80062.19041.26622.1866
C21.54891.10361.10761.55302.21282.22262.59692.77923.33652.49193.3055
H32.18381.10361.79742.22922.49912.76243.47433.77634.26022.70003.9884
H42.15451.10761.79742.19073.10292.44473.10613.12133.55352.95224.0229
C52.51411.55302.22922.19071.10181.10022.72231.92413.62383.69683.2699
H62.94992.21282.49913.10291.10181.80673.12132.50934.16654.00323.3099
H73.45862.22262.76242.44471.10021.80673.67502.48284.45474.61684.3055
C81.55652.59693.47433.10612.72233.12133.67501.90451.10152.47591.1027
S92.80062.77923.77633.12131.92412.50932.48281.90452.50064.02642.5130
H102.19043.33654.26023.55353.62384.16654.45471.10152.50062.79711.8030
O111.26622.49192.70002.95223.69684.00324.61682.47594.02642.79712.8228
H122.18663.30553.98844.02293.26993.30994.30551.10272.51301.80302.8228

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 109.695 C1 C2 H4 107.225
C1 C2 C5 108.293 C1 C8 S9 107.607
C1 C8 H10 109.801 C1 C8 H12 109.446
C2 C1 C8 113.495 C2 C1 O11 124.242
C2 C5 H6 111.796 C2 C5 H7 112.680
C2 C5 S9 105.629 H3 C2 H4 108.749
H3 C2 C5 113.003 H4 C2 C5 109.716
C5 S9 C8 90.636 H6 C5 H7 110.264
H6 C5 S9 109.007 H7 C5 S9 107.198
C8 C1 O11 122.260 S9 C8 H10 109.673
S9 C8 H12 110.515 H10 C8 H12 109.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability