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: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-591.733599
Energy at 298.15K-591.745375
Nuclear repulsion energy305.412859
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3171 3060 11.49      
2 A 3136 3026 33.78      
3 A 3117 3008 32.10      
4 A 3112 3003 20.75      
5 A 3107 2998 7.14      
6 A 3101 2992 4.61      
7 A 3091 2982 6.68      
8 A 3064 2956 17.75      
9 A 3055 2948 24.53      
10 A 3046 2939 17.92      
11 A 1564 1509 9.04      
12 A 1554 1500 6.59      
13 A 1548 1494 0.38      
14 A 1540 1486 8.43      
15 A 1535 1481 3.68      
16 A 1464 1413 7.41      
17 A 1399 1350 2.62      
18 A 1391 1342 0.77      
19 A 1363 1315 2.20      
20 A 1317 1271 15.60      
21 A 1308 1262 12.59      
22 A 1256 1212 6.41      
23 A 1217 1174 11.76      
24 A 1162 1122 1.05      
25 A 1114 1075 0.40      
26 A 1100 1062 1.86      
27 A 1051 1014 7.25      
28 A 1017 981 0.57      
29 A 1001 965 4.87      
30 A 961 928 4.89      
31 A 894 863 1.08      
32 A 872 841 2.04      
33 A 843 814 3.53      
34 A 640 618 4.20      
35 A 596 575 5.16      
36 A 527 508 1.36      
37 A 454 438 0.12      
38 A 406 392 0.99      
39 A 288 278 1.65      
40 A 260 250 0.26      
41 A 240 231 0.18      
42 A 95 91 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 31487.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 30382.2 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 B3LYP/3-21G
ABC
0.13322 0.09035 0.05914

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.291 0.140 0.227
H2 -2.194 0.015 1.309
H3 -2.874 1.047 0.023
H4 -2.842 -0.716 -0.173
S5 0.120 -1.345 -0.074
C6 1.713 -0.340 0.304
H7 2.545 -0.816 -0.215
H8 1.874 -0.367 1.383
C9 -0.906 0.254 -0.416
H10 -0.986 0.340 -1.503
C11 1.430 1.091 -0.193
H12 1.573 1.139 -1.278
H13 2.111 1.806 0.282
C14 -0.044 1.400 0.146
H15 -0.364 2.358 -0.281
H16 -0.170 1.442 1.235

Atom - Atom Distances (Å)
  C1 H2 H3 H4 S5 C6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
C11.09431.09771.09462.84754.03334.94924.35181.53082.17533.86274.26514.70642.57702.98162.6847
H21.09431.78471.77603.01954.04975.04684.08612.16633.07764.06734.70624.77402.80963.37192.4774
H31.09771.78471.77503.83374.80065.73545.13732.16672.52784.30934.63435.04872.85432.84792.9893
H41.09461.77601.77503.02984.59595.38854.97862.17932.51564.63854.91525.57693.52293.95063.7124
S52.84753.01953.83373.02981.92172.48642.48151.93052.47072.76813.11963.74432.75903.74063.0929
C64.03334.04974.80064.59591.92171.09011.09092.78073.31881.54052.17032.18232.47803.45482.7544
H74.94925.04685.73545.38852.48641.09011.79043.61883.93272.20882.42822.70353.42704.30593.8172
H84.35184.08615.13734.97862.48151.09091.79043.36904.12392.19163.07212.44692.88643.89882.7333
C91.53082.16632.16672.17931.93052.78073.61883.36901.09282.49122.77003.46371.54022.17722.1630
H102.17533.07762.52782.51562.47073.31883.93274.12391.09282.84892.69063.86332.17432.43973.0615
C113.86274.06734.30934.63852.76811.54052.20882.19162.49122.84891.09591.09591.54362.19812.1726
H124.26514.70624.63434.91523.11962.17032.42823.07212.77002.69061.09591.77992.17042.49653.0732
H134.70644.77405.04875.57693.74432.18232.70352.44693.46373.86331.09591.77992.19702.59732.4983
C142.57702.80962.85433.52292.75902.47803.42702.88641.54022.17431.54362.17042.19701.09651.0971
H152.98163.37192.84793.95063.74063.45484.30593.89882.17722.43972.19812.49652.59731.09651.7817
H162.68472.47742.98933.71243.09292.75443.81722.73332.16303.06152.17263.07322.49831.09711.7817

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 110.172 C1 C9 H10 110.916
C1 C9 C14 114.095 H2 C1 H3 109.016
H2 C1 H4 108.457 H2 C1 C9 110.111
H3 C1 H4 108.128 H3 C1 C9 109.945
H4 C1 C9 111.126 S5 C6 H7 108.088
S5 C6 H8 107.704 S5 C6 C11 105.643
S5 C9 H10 106.289 S5 C9 C14 104.739
C6 S5 C9 92.416 C6 C11 H12 109.661
C6 C11 H13 110.605 C6 C11 C14 106.929
H7 C6 H8 110.352 H7 C6 C11 113.093
H8 C6 C11 111.649 C9 C14 C11 107.769
C9 C14 H15 110.192 C9 C14 H16 109.043
H10 C9 C14 110.178 C11 C14 H15 111.613
C11 C14 H16 109.560 H12 C11 H13 108.600
H12 C11 C14 109.462 H13 C11 C14 111.563
H15 C14 H16 108.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.535     -0.552
2 H 0.205     0.144
3 H 0.192     0.129
4 H 0.203     0.191
5 S 0.208     -0.341
6 C -0.594     -0.038
7 H 0.228     0.106
8 H 0.226     0.100
9 C -0.439     0.231
10 H 0.227     0.054
11 C -0.380     -0.328
12 H 0.206     0.127
13 H 0.203     0.120
14 C -0.353     -0.112
15 H 0.201     0.069
16 H 0.203     0.098


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.334 2.419 0.044 2.443
CHELPG        
AIM        
ESP 0.342 2.407 0.028 2.432


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.269 -0.269 0.943
y -0.269 -48.953 -0.380
z 0.943 -0.380 -46.184
Traceless
 xyz
x 5.299 -0.269 0.943
y -0.269 -4.726 -0.380
z 0.943 -0.380 -0.573
Polar
3z2-r2-1.146
x2-y26.684
xy-0.269
xz0.943
yz-0.380


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.986 -0.141 0.410
y -0.141 9.935 -0.040
z 0.410 -0.040 7.437


<r2> (average value of r2) Å2
<r2> 209.730
(<r2>)1/2 14.482