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 C5H10S (Thiophene, tetrahydro-3-methyl-)

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-43.601430
Energy at 298.15K-43.613202
HF Energy-43.091491
Nuclear repulsion energy134.473292
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-121G
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 3111 3036 25.16      
2 A 3101 3027 20.23      
3 A 3070 2996 44.52      
4 A 3063 2990 46.02      
5 A 3049 2976 26.33      
6 A 3027 2954 17.53      
7 A 3019 2947 61.10      
8 A 2992 2921 45.70      
9 A 2975 2904 17.86      
10 A 2961 2890 32.64      
11 A 1532 1495 4.20      
12 A 1524 1487 3.92      
13 A 1510 1474 5.54      
14 A 1502 1466 2.33      
15 A 1494 1458 4.56      
16 A 1448 1414 11.94      
17 A 1392 1359 2.67      
18 A 1363 1331 9.63      
19 A 1346 1314 3.16      
20 A 1322 1290 17.42      
21 A 1285 1254 8.56      
22 A 1242 1212 1.74      
23 A 1188 1159 1.95      
24 A 1135 1107 0.26      
25 A 1088 1062 1.24      
26 A 1073 1048 0.90      
27 A 1058 1032 0.84      
28 A 1001 977 1.70      
29 A 971 948 0.13      
30 A 934 912 1.62      
31 A 913 891 2.81      
32 A 863 843 0.68      
33 A 789 770 1.66      
34 A 697 680 3.89      
35 A 648 632 2.10      
36 A 585 571 0.51      
37 A 469 458 0.05      
38 A 364 356 0.11      
39 A 345 337 0.17      
40 A 234 228 0.14      
41 A 168 164 0.17      
42 A 101 99 2.76      

Unscaled Zero Point Vibrational Energy (zpe) 30974.9 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 30231.5 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-121G
ABC
0.13427 0.08226 0.06703

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.529 0.993 -0.525
C2 -1.748 -0.170 -0.739
H3 -1.139 -0.047 -1.651
H4 -2.212 -1.172 -0.757
H5 -2.553 0.584 -0.768
C6 -0.075 1.358 0.488
H7 -0.630 2.150 -0.038
H8 0.221 1.697 1.492
C9 -0.877 0.017 0.544
H10 -1.538 0.032 1.433
C11 1.292 -0.916 -0.369
H12 2.254 -1.351 -0.062
H13 0.991 -1.314 -1.350
C14 0.182 -1.125 0.711
H15 0.632 -1.066 1.719
H16 -0.294 -2.116 0.594

Atom - Atom Distances (Å)
  S1 C2 H3 H4 H5 C6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
S13.48323.07634.32804.10951.93202.49792.50542.80833.76321.92982.49612.50812.79763.17453.7732
C23.48321.10371.10431.10402.57622.66913.51301.56182.19123.15144.22663.03012.59583.53602.7705
H33.07631.10371.79361.78292.77122.77283.84332.21203.11072.88223.96672.49662.91333.94073.1678
H44.32801.10431.79361.78913.53773.74904.38302.21082.58853.53434.52313.26022.80863.77182.5287
H54.10951.10401.78291.78912.88372.58513.74742.20282.48574.14665.22984.06243.54844.36453.7749
C61.93202.57622.77123.53772.88371.10091.10071.56362.18852.78833.61443.41372.50622.80873.4823
H72.49792.66912.77283.74902.58511.10091.80822.22492.73333.63414.53604.04373.45653.87544.3256
H82.50543.51303.84334.38303.74741.10071.80822.22012.42283.38273.98014.21182.92892.80283.9515
C92.80831.56182.21202.21082.20281.56362.22492.22011.10722.53203.47052.97501.56672.19742.2118
H103.76322.19123.11072.58852.48572.18852.73332.42281.10723.48644.30443.99392.19542.44842.6206
C111.92983.15142.88223.53434.14662.78833.63413.38272.53203.48641.09941.10021.56262.19502.2092
H122.49614.22663.96674.52315.22983.61444.53603.98013.47054.30441.09941.80392.22302.42622.7400
H132.50813.03012.49663.26024.06243.41374.04374.21182.97503.99391.10021.80392.22183.09952.4638
C142.79762.59582.91332.80863.54842.50623.45652.92891.56672.19541.56262.22302.22181.10511.1055
H153.17453.53603.94073.77184.36452.80873.87542.80282.19742.44842.19502.42623.09951.10511.7959
H163.77322.77053.16782.52873.77493.48234.32563.95152.21182.62062.20922.74002.46381.10551.7959

picture of Thiophene, tetrahydro-3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C6 H7 107.722 S1 C6 H8 108.263
S1 C6 C9 106.426 S1 C11 H12 107.811
S1 C11 H13 108.622 S1 C11 C14 105.982
C2 C9 C6 111.031 C2 C9 H10 109.186
C2 C9 C14 112.141 H3 C2 H4 108.649
H3 C2 H5 107.720 H3 C2 C9 111.004
H4 C2 H5 108.224 H4 C2 C9 110.879
H5 C2 C9 110.261 C6 S1 C11 92.443
C6 C9 H10 108.850 C6 C9 C14 106.378
H7 C6 H8 110.433 H7 C6 C9 112.069
H8 C6 C9 111.696 C9 C14 C11 108.019
C9 C14 H15 109.443 C9 C14 H16 110.541
H10 C9 C14 109.169 C11 C14 H15 109.537
C11 C14 H16 110.622 H12 C11 H13 110.189
H12 C11 C14 112.077 H13 C11 C14 111.934
H15 C14 H16 108.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability