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: MP2=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-628.197033
Energy at 298.15K-628.204758
HF Energy-627.346648
Nuclear repulsion energy291.959628
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=FULL/6-31G*
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 3204 3019 7.55      
2 A 3190 3006 5.31      
3 A 3178 2994 9.52      
4 A 3134 2953 15.38      
5 A 3122 2942 16.80      
6 A 3105 2926 4.46      
7 A 1795 1691 259.94      
8 A 1560 1470 0.23      
9 A 1547 1457 7.14      
10 A 1520 1432 8.51      
11 A 1403 1322 0.42      
12 A 1359 1280 10.72      
13 A 1352 1274 2.39      
14 A 1286 1212 2.80      
15 A 1227 1156 2.07      
16 A 1153 1086 10.34      
17 A 1112 1048 65.09      
18 A 1071 1009 4.20      
19 A 1066 1004 40.53      
20 A 956 900 9.68      
21 A 905 853 9.80      
22 A 870 820 13.28      
23 A 734 692 1.70      
24 A 642 605 42.37      
25 A 618 582 9.73      
26 A 493 464 1.06      
27 A 484 456 1.59      
28 A 411 387 3.32      
29 A 248 233 1.44      
30 A 125 118 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 21434.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 20195.6 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=FULL/6-31G*
ABC
0.14821 0.10478 0.06496

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.118 1.415 0.198
H2 -0.589 2.250 -0.327
H3 -0.103 1.656 1.269
C4 1.272 1.061 -0.303
H5 2.035 1.764 0.046
H6 1.282 1.070 -1.398
C7 1.565 -0.355 0.194
H8 1.836 -0.352 1.254
H9 2.370 -0.832 -0.368
C10 -0.992 0.181 0.023
O11 -2.204 0.168 -0.056
S12 0.027 -1.295 -0.043

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 O11 S12
C11.09271.09781.51912.18582.15042.44262.83863.40001.52222.44372.7247
H21.09271.77062.20842.69452.45793.42043.89264.27282.13642.64853.6093
H31.09781.77062.17132.46463.06122.82502.79153.87102.12572.89573.2322
C41.51912.20842.17131.09421.09461.52982.17752.18972.45053.59742.6775
H52.18582.69452.46461.09421.77042.17532.44442.64983.41534.53023.6596
H62.15042.45793.06121.09461.77042.15523.05952.42072.82403.84222.9997
C72.44263.42042.82501.52982.17532.15521.09361.09182.61803.81351.8178
H82.83863.89262.79152.17752.44443.05951.09361.77383.13004.27912.4174
H93.40004.27283.87102.18972.64982.42071.09181.77383.53284.69262.4100
C101.52222.13642.12572.45053.41532.82402.61803.13003.53281.21501.7949
O112.44372.64852.89573.59744.53023.84223.81354.27914.69261.21502.6683
S122.72473.60933.23222.67753.65962.99971.81782.41742.41001.79492.6683

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 112.511 C1 C4 H6 109.650
C1 C4 C7 106.478 C1 C10 O11 126.082
C1 C10 S12 110.184 H2 C1 H3 107.854
H2 C1 C4 114.470 H2 C1 C10 108.451
H3 C1 C4 111.114 H3 C1 C10 107.339
C4 C1 C10 107.362 C4 C7 H8 111.117
C4 C7 H9 112.210 C4 C7 S12 105.905
H5 C4 H6 107.969 H5 C4 C7 110.904
H6 C4 C7 109.297 C7 S12 C10 92.881
H8 C7 H9 108.520 H8 C7 S12 109.745
H9 C7 S12 109.301 O11 C10 S12 123.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability