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-2-methyl-)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-593.556992
Energy at 298.15K-593.568872
HF Energy-592.709923
Nuclear repulsion energy310.125915
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/cc-pVDZ
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 3187 3035 18.41      
2 A 3171 3021 18.59      
3 A 3171 3020 17.60      
4 A 3154 3004 20.27      
5 A 3143 2993 20.45      
6 A 3100 2953 30.40      
7 A 3089 2942 21.75      
8 A 3087 2940 16.45      
9 A 3076 2930 37.63      
10 A 3073 2927 9.10      
11 A 1496 1425 1.88      
12 A 1493 1422 4.19      
13 A 1484 1414 5.11      
14 A 1474 1404 4.68      
15 A 1470 1400 3.03      
16 A 1404 1337 2.83      
17 A 1379 1313 1.38      
18 A 1355 1290 0.42      
19 A 1313 1251 0.23      
20 A 1300 1238 3.66      
21 A 1284 1223 20.25      
22 A 1240 1181 4.13      
23 A 1200 1143 7.10      
24 A 1169 1114 0.50      
25 A 1123 1070 0.33      
26 A 1078 1026 1.70      
27 A 1054 1003 0.83      
28 A 1044 994 2.55      
29 A 973 926 1.61      
30 A 966 920 1.51      
31 A 922 878 0.81      
32 A 867 825 0.01      
33 A 863 822 2.82      
34 A 708 674 1.54      
35 A 652 621 2.02      
36 A 528 503 0.53      
37 A 460 438 0.04      
38 A 415 395 0.43      
39 A 291 277 0.70      
40 A 269 257 0.18      
41 A 257 245 0.15      
42 A 86 82 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 31431.3 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 29938.3 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/cc-pVDZ
ABC
0.13903 0.09280 0.06133

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.267 0.133 0.223
H2 -2.187 0.008 1.315
H3 -2.845 1.051 0.010
H4 -2.830 -0.724 -0.181
S5 0.116 -1.297 -0.081
C6 1.656 -0.369 0.311
H7 2.512 -0.861 -0.178
H8 1.824 -0.378 1.402
C9 -0.878 0.233 -0.403
H10 -0.975 0.341 -1.499
C11 1.426 1.060 -0.193
H12 1.569 1.095 -1.288
H13 2.138 1.767 0.269
C14 -0.030 1.387 0.142
H15 -0.358 2.351 -0.286
H16 -0.155 1.441 1.241

Atom - Atom Distances (Å)
  C1 H2 H3 H4 S5 C6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
C11.10261.10461.10232.79613.95614.89744.28781.52692.16283.83044.23384.69792.56612.96972.6843
H21.10261.79511.78582.99283.99015.00654.03022.17183.08244.05454.69794.78462.81673.37622.4876
H31.10461.79511.78453.77994.72905.69045.07662.17012.50584.27594.60135.04012.83832.82152.9832
H41.10231.78581.78453.00354.52745.34384.92812.18542.51254.61534.88785.57543.52223.94633.7234
S52.79612.99283.77993.00351.84052.43702.44101.85272.42622.69973.04893.68772.69813.68483.0524
C63.95613.99014.72904.52741.84051.10181.10352.70043.27161.53302.17012.19002.44043.43702.7238
H74.89745.00655.69045.34382.43701.10181.79013.56843.91712.20682.43852.69203.40834.30873.7979
H84.28784.03025.07664.92812.44101.10351.79013.30574.09452.18453.07772.44662.85303.88082.6928
C91.52692.17182.17012.18541.85272.70043.56843.30571.10592.45712.74153.44921.53312.18412.1640
H102.16283.08242.50582.51252.42623.27163.91714.09451.10592.82642.66203.85292.16402.42703.0638
C113.83044.05454.27594.61532.69971.53302.20682.18452.45712.82641.10481.10381.52942.20442.1680
H124.23384.69794.60134.88783.04892.17012.43853.07772.74152.66201.10481.78792.16512.50913.0799
H134.69794.78465.04015.57543.68772.19002.69202.44663.44923.85291.10381.78792.20372.62272.5113
C142.56612.81672.83833.52222.69812.44043.40832.85301.53312.16401.52942.16512.20371.10461.1066
H152.96973.37622.82153.94633.68483.43704.30873.88082.18412.42702.20442.50912.62271.10461.7891
H162.68432.48762.98323.72343.05242.72383.79792.69282.16403.06382.16803.07992.51131.10661.7891

picture of Thiophene, tetrahydro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C9 S5 111.295 C1 C9 H10 109.429
C1 C9 C14 113.989 H2 C1 H3 108.836
H2 C1 H4 108.172 H2 C1 C9 110.331
H3 C1 H4 107.920 H3 C1 C9 110.075
H4 C1 C9 111.425 S5 C6 H7 109.252
S5 C6 H8 109.457 S5 C6 C11 105.952
S5 C9 H10 107.483 S5 C9 C14 105.281
C6 S5 C9 93.970 C6 C11 H12 109.645
C6 C11 H13 111.269 C6 C11 C14 105.667
H7 C6 H8 108.527 H7 C6 C11 112.744
H8 C6 C11 110.848 C9 C14 C11 106.706
C9 C14 H15 110.750 C9 C14 H16 109.057
H10 C9 C14 109.104 C11 C14 H15 112.633
C11 C14 H16 109.626 H12 C11 H13 108.102
H12 C11 C14 109.501 H13 C11 C14 112.625
H15 C14 H16 108.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability