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-592.607629
Energy at 298.15K-592.619337
Nuclear repulsion energy312.646961
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 3080 3022 12.25      
2 A 3068 3011 9.63      
3 A 3065 3008 15.46      
4 A 3047 2990 20.55      
5 A 3035 2978 21.30      
6 A 3004 2948 21.40      
7 A 2990 2934 20.21      
8 A 2984 2928 22.11      
9 A 2981 2925 14.04      
10 A 2969 2914 11.69      
11 A 1462 1434 3.52      
12 A 1456 1429 8.34      
13 A 1445 1418 8.55      
14 A 1440 1413 8.22      
15 A 1434 1407 5.65      
16 A 1371 1345 10.83      
17 A 1343 1318 0.92      
18 A 1319 1295 0.21      
19 A 1275 1251 0.58      
20 A 1262 1238 3.59      
21 A 1245 1222 21.04      
22 A 1206 1184 5.22      
23 A 1173 1151 9.38      
24 A 1149 1128 1.14      
25 A 1104 1083 0.55      
26 A 1050 1031 1.34      
27 A 1034 1015 2.22      
28 A 1015 996 3.49      
29 A 948 930 1.94      
30 A 945 928 4.26      
31 A 906 889 1.05      
32 A 853 837 0.04      
33 A 845 829 5.14      
34 A 696 683 1.19      
35 A 639 627 2.39      
36 A 519 509 0.95      
37 A 454 446 0.11      
38 A 410 402 0.89      
39 A 280 274 1.11      
40 A 263 258 0.27      
41 A 243 238 0.31      
42 A 100 98 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 30552.3 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 29981.0 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
0.14225 0.09423 0.06240

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 -2.247 0.128 0.206
H2 -2.176 0.001 1.301
H3 -2.832 1.042 -0.006
H4 -2.811 -0.731 -0.197
S5 0.116 -1.283 -0.069
C6 1.654 -0.362 0.287
H7 2.503 -0.843 -0.228
H8 1.852 -0.386 1.373
C9 -0.872 0.232 -0.399
H10 -0.954 0.345 -1.497
C11 1.405 1.055 -0.190
H12 1.538 1.107 -1.287
H13 2.118 1.764 0.267
C14 -0.034 1.364 0.157
H15 -0.373 2.338 -0.242
H16 -0.158 1.392 1.259

Atom - Atom Distances (Å)
  C1 H2 H3 H4 S5 C6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
C11.10431.10541.10302.76643.93314.86754.29261.50612.14983.78924.18564.66292.53612.93262.6587
H21.10431.79441.78372.96353.97934.99414.04712.15473.07284.02024.66044.75652.78523.33072.4510
H31.10541.79441.78253.75514.70975.66195.08662.15652.49734.24124.55445.01032.82152.78972.9781
H41.10301.78371.78252.98134.50625.31454.93152.17392.50884.57844.84535.54403.49643.91933.6955
S52.76642.96353.75512.98131.82792.43192.42831.83912.41572.67293.03673.66212.66163.65872.9989
C63.93313.97934.70974.50621.82791.10241.10442.68423.23791.51562.15642.17662.41793.41782.7028
H74.86754.99415.66195.31452.43191.10241.78733.54593.86912.19262.42022.68143.38424.28843.7792
H84.29264.04715.08664.93152.42831.10441.78733.30734.07952.17233.06692.43302.84533.87012.6855
C91.50612.15472.15652.17391.83912.68423.54593.30731.10742.43022.71363.42531.51432.17002.1446
H102.14983.07282.49732.50882.41573.23793.86914.07951.10742.78892.61433.81642.15002.42643.0533
C113.78924.02024.24124.57842.67291.51562.19262.17232.43022.78891.10651.10481.51232.19372.1580
H124.18564.66044.55444.84533.03672.15642.42023.06692.71362.61431.10651.78422.15012.50223.0725
H134.66294.75655.01035.54403.66212.17662.68142.43303.42533.81641.10481.78422.19182.60682.5113
C142.53612.78522.82153.49642.66162.41793.38422.84531.51432.15001.51232.15012.19181.10581.1088
H152.93263.33072.78973.91933.65873.41784.28843.87012.17002.42642.19372.50222.60681.10581.7869
H162.65872.45102.97813.69552.99892.70283.77922.68552.14463.05332.15803.07252.51131.10881.7869

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 111.194 C1 C9 H10 109.749
C1 C9 C14 114.210 H2 C1 H3 108.600
H2 C1 H4 107.827 H2 C1 C9 110.324
H3 C1 H4 107.641 H3 C1 C9 110.396
H4 C1 C9 111.934 S5 C6 H7 109.685
S5 C6 H8 109.319 S5 C6 C11 105.768
S5 C9 H10 107.535 S5 C9 C14 104.652
C6 S5 C9 94.104 C6 C11 H12 109.669
C6 C11 H13 111.361 C6 C11 C14 105.984
H7 C6 H8 108.174 H7 C6 C11 112.802
H8 C6 C11 111.043 C9 C14 C11 106.831
C9 C14 H15 110.870 C9 C14 H16 108.703
H10 C9 C14 109.203 C11 C14 H15 112.921
C11 C14 H16 109.882 H12 C11 H13 107.582
H12 C11 C14 109.400 H13 C11 C14 112.826
H15 C14 H16 107.579
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 -0.535      
2 H 0.187      
3 H 0.175      
4 H 0.189      
5 S 0.071      
6 C -0.474      
7 H 0.203      
8 H 0.200      
9 C -0.259      
10 H 0.190      
11 C -0.330      
12 H 0.179      
13 H 0.176      
14 C -0.319      
15 H 0.173      
16 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.395 2.104 0.004 2.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.890 -0.336 0.987
y -0.336 -47.837 -0.356
z 0.987 -0.356 -45.647
Traceless
 xyz
x 4.852 -0.336 0.987
y -0.336 -4.068 -0.356
z 0.987 -0.356 -0.784
Polar
3z2-r2-1.567
x2-y25.947
xy-0.336
xz0.987
yz-0.356


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.530 -0.131 0.250
y -0.131 10.478 -0.023
z 0.250 -0.023 8.381


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