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: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-592.529706
Energy at 298.15K-592.541433
Nuclear repulsion energy308.605025
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 LSDA/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 3103 3040 9.03      
2 A 3090 3027 14.57      
3 A 3070 3008 18.81      
4 A 3052 2990 28.53      
5 A 3041 2979 17.69      
6 A 3028 2967 18.04      
7 A 3009 2948 7.49      
8 A 2989 2928 19.68      
9 A 2980 2920 24.78      
10 A 2971 2911 14.14      
11 A 1476 1446 16.52      
12 A 1473 1443 0.56      
13 A 1465 1435 12.80      
14 A 1461 1432 14.37      
15 A 1455 1425 4.17      
16 A 1394 1366 17.43      
17 A 1352 1325 2.96      
18 A 1335 1308 0.52      
19 A 1303 1276 3.92      
20 A 1270 1244 5.44      
21 A 1258 1232 17.56      
22 A 1217 1192 5.18      
23 A 1186 1162 10.89      
24 A 1162 1139 0.04      
25 A 1115 1092 0.83      
26 A 1074 1052 0.18      
27 A 1053 1031 5.90      
28 A 1027 1006 4.97      
29 A 967 948 7.86      
30 A 963 944 2.03      
31 A 913 894 1.61      
32 A 865 848 0.78      
33 A 852 835 5.84      
34 A 660 646 2.41      
35 A 601 589 4.32      
36 A 523 512 1.21      
37 A 448 439 0.27      
38 A 410 402 1.24      
39 A 281 275 2.03      
40 A 264 259 0.32      
41 A 237 232 0.23      
42 A 98 96 1.78      

Unscaled Zero Point Vibrational Energy (zpe) 30744.1 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 30120.0 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 LSDA/6-31G
ABC
0.13674 0.09242 0.06067

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.263 0.129 0.217
H2 -2.175 -0.003 1.311
H3 -2.855 1.042 0.019
H4 -2.827 -0.731 -0.183
S5 0.128 -1.325 -0.073
C6 1.689 -0.328 0.299
H7 2.539 -0.804 -0.213
H8 1.861 -0.351 1.388
C9 -0.897 0.247 -0.406
H10 -0.973 0.335 -1.506
C11 1.402 1.079 -0.193
H12 1.540 1.128 -1.291
H13 2.098 1.808 0.262
C14 -0.048 1.377 0.148
H15 -0.386 2.349 -0.259
H16 -0.177 1.412 1.250

Atom - Atom Distances (Å)
  C1 H2 H3 H4 S5 C6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
C11.10471.10641.10302.81413.97944.91154.31441.50632.16263.80894.21144.67332.54352.94612.6582
H21.10471.79531.78492.99474.00755.01894.05222.15443.08084.02864.67414.75762.78923.34592.4493
H31.10641.79531.78483.81014.75485.70695.10532.15642.52414.26334.58715.01792.83032.80772.9710
H41.10301.78491.78483.01634.55905.36664.95882.17452.51414.59984.87295.55803.50313.93023.6968
S52.81412.99473.81013.01631.88872.47062.46671.90582.45382.72323.08093.71552.71653.71443.0549
C63.97944.00754.75484.55901.88871.10091.10282.74093.28331.51762.16092.17492.43843.43242.7224
H74.91155.01895.70695.36662.47061.10091.79633.59863.91212.19982.42802.69133.40324.30143.7983
H84.31444.05225.10534.95882.46671.10281.79633.34394.10802.18063.07702.44632.85813.87972.6983
C91.50632.15442.15642.17451.90582.74093.59863.34391.10632.45442.73813.44251.51802.16852.1486
H102.16263.08082.52412.51412.45383.28333.91214.10801.10632.81372.64323.83702.16232.44043.0637
C113.80894.02864.26334.59982.72321.51762.19982.18062.45442.81371.10761.10571.51942.19442.1648
H124.21144.67414.58714.87293.08092.16092.42803.07702.73812.64321.10761.78522.15722.50303.0794
H134.67334.75765.01795.55803.71552.17492.69132.44633.44253.83701.10571.78522.19162.59482.5109
C142.54352.78922.83033.50312.71652.43843.40322.85811.51802.16231.51942.15722.19161.10671.1098
H152.94613.34592.80773.93023.71443.43244.30143.87972.16852.44042.19442.50302.59481.10671.7881
H162.65822.44932.97103.69683.05492.72243.79832.69832.14863.06372.16483.07942.51091.10981.7881

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 110.573 C1 C9 H10 110.810
C1 C9 C14 114.498 H2 C1 H3 108.567
H2 C1 H4 107.892 H2 C1 C9 110.250
H3 C1 H4 107.761 H3 C1 C9 110.303
H4 C1 C9 111.956 S5 C6 H7 108.575
S5 C6 H8 108.203 S5 C6 C11 105.636
S5 C9 H10 106.039 S5 C9 C14 104.443
C6 S5 C9 92.494 C6 C11 H12 109.817
C6 C11 H13 111.031 C6 C11 C14 106.811
H7 C6 H8 109.206 H7 C6 C11 113.339
H8 C6 C11 111.666 C9 C14 C11 107.812
C9 C14 H15 110.440 C9 C14 H16 108.707
H10 C9 C14 109.975 C11 C14 H15 112.410
C11 C14 H16 109.864 H12 C11 H13 107.530
H12 C11 C14 109.404 H13 C11 C14 112.243
H15 C14 H16 107.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.484      
2 H 0.181      
3 H 0.168      
4 H 0.182      
5 S 0.184      
6 C -0.548      
7 H 0.203      
8 H 0.201      
9 C -0.375      
10 H 0.196      
11 C -0.308      
12 H 0.177      
13 H 0.173      
14 C -0.292      
15 H 0.171      
16 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.368 2.433 0.022 2.461
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.728 -0.265 0.993
y -0.265 -48.609 -0.387
z 0.993 -0.387 -45.948
Traceless
 xyz
x 5.550 -0.265 0.993
y -0.265 -4.771 -0.387
z 0.993 -0.387 -0.779
Polar
3z2-r2-1.559
x2-y26.881
xy-0.265
xz0.993
yz-0.387


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.483 -0.160 0.307
y -0.160 10.532 -0.014
z 0.307 -0.014 8.215


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000