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All results from a given calculation for C5H6S (Thiophene, 2-methyl-)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-592.330142
Energy at 298.15K-592.336297
Nuclear repulsion energy273.742502
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 B1B95/6-311G**
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 3266 3136 0.95      
2 A 3228 3100 6.05      
3 A 3211 3083 7.91      
4 A 3137 3012 12.51      
5 A 3047 2926 30.54      
6 A 1607 1543 3.09      
7 A 1513 1452 8.51      
8 A 1488 1429 9.76      
9 A 1409 1353 0.16      
10 A 1389 1334 0.78      
11 A 1256 1206 11.06      
12 A 1191 1144 12.03      
13 A 1101 1057 2.60      
14 A 1067 1025 4.13      
15 A 991 952 1.33      
16 A 864 829 14.90      
17 A 757 727 0.19      
18 A 679 652 1.96      
19 A 553 531 0.68      
20 A 301 289 0.83      
21 A 3107 2983 14.68      
22 A 1475 1416 9.17      
23 A 1051 1009 0.82      
24 A 906 870 0.20      
25 A 828 795 13.02      
26 A 700 672 76.62      
27 A 570 547 0.16      
28 A 473 454 6.61      
29 A 232 223 3.63      
30 A 90 86 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 20743.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 19915.6 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 B1B95/6-311G**
ABC
0.17745 0.10451 0.06659

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.376 -1.550 0.000
C2 -1.429 -1.031 0.000
H3 -2.132 1.069 0.000
C4 -1.295 0.383 0.000
C5 0.000 0.808 0.000
H6 -0.026 -2.726 0.000
C7 -0.228 -1.667 0.000
S8 1.076 -0.546 0.000
H9 -0.320 2.907 0.000
H10 1.127 2.416 0.881
H11 1.127 2.416 -0.881
C12 0.516 2.207 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08092.63042.21493.34832.62812.15203.59544.90845.36465.36464.7422
C21.08092.21411.41982.32892.20031.35912.55094.09044.38024.38023.7774
H32.63042.21411.08182.14774.33993.33333.59122.58093.63453.63452.8826
C42.21491.41981.08181.36353.35802.31132.54662.70573.28273.28272.5713
C53.34832.32892.14771.36353.53462.48601.72972.12232.15182.15181.4912
H62.62812.20034.33993.35803.53461.07802.44275.64025.34285.34284.9633
C72.15201.35913.33332.31132.48601.07801.71934.57464.39124.39123.9454
S83.59542.55093.59122.54661.72972.44271.71933.72403.09083.09082.8098
H94.90844.09042.58092.70572.12235.64024.57463.72401.76341.76341.0899
H105.36464.38023.63453.28272.15185.34284.39123.09081.76341.76281.0921
H115.36464.38023.63453.28272.15185.34284.39123.09081.76341.76281.0921
C124.74223.77742.88262.57131.49124.96333.94542.80981.08991.09211.0921

picture of Thiophene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 124.116 H1 C2 C7 123.354
C2 C4 H3 123.963 C2 C4 C5 113.579
C2 C7 H6 128.698 C2 C7 S8 111.385
H3 C4 C5 122.459 C4 C2 C7 112.531
C4 C5 S8 110.268 C4 C5 C12 128.447
C5 S8 C7 92.237 C5 C12 H9 109.641
C5 C12 H10 111.873 C5 C12 H11 111.873
H6 C7 S8 119.917 S8 C5 C12 121.286
H9 C12 H10 107.835 H9 C12 H11 107.835
H10 C12 H11 107.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.109      
2 C -0.092      
3 H 0.105      
4 C -0.054      
5 C -0.313      
6 H 0.143      
7 C -0.307      
8 S 0.271      
9 H 0.131      
10 H 0.144      
11 H 0.144      
12 C -0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.392 0.559 0.000 0.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.052 0.678 0.000
y 0.678 -37.186 0.000
z 0.000 0.000 -46.333
Traceless
 xyz
x 0.708 0.678 0.000
y 0.678 6.507 0.000
z 0.000 0.000 -7.214
Polar
3z2-r2-14.429
x2-y2-3.866
xy0.678
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.727 0.421 0.000
y 0.421 12.184 0.000
z 0.000 0.000 5.454


<r2> (average value of r2) Å2
<r2> 176.022
(<r2>)1/2 13.267