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 C5H6S (Thiophene, 3-methyl-)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-591.877048
Energy at 298.15K-591.883050
HF Energy-591.877048
Nuclear repulsion energy268.244822
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 PBEPBEultrafine/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' 3203 3150 0.77      
2 A' 3194 3141 0.89      
3 A' 3146 3094 6.04      
4 A' 3071 3021 14.36      
5 A' 2979 2930 33.51      
6 A' 1564 1539 2.78      
7 A' 1480 1455 9.91      
8 A' 1437 1414 3.21      
9 A' 1397 1374 2.16      
10 A' 1386 1363 1.80      
11 A' 1226 1206 3.64      
12 A' 1160 1141 2.44      
13 A' 1083 1065 3.81      
14 A' 991 975 9.45      
15 A' 928 913 2.83      
16 A' 854 840 13.94      
17 A' 821 807 5.26      
18 A' 650 639 0.39      
19 A' 534 525 0.37      
20 A' 310 305 0.83      
21 A" 3036 2986 17.89      
22 A" 1465 1441 6.46      
23 A" 1036 1019 4.43      
24 A" 841 827 0.11      
25 A" 742 729 69.65      
26 A" 645 634 1.45      
27 A" 587 578 9.14      
28 A" 447 440 0.32      
29 A" 228 224 2.78      
30 A" 108 106 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 20273.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 19939.4 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 PBEPBEultrafine/6-31G*
ABC
0.22938 0.08070 0.06038

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.231 0.798 0.000
C2 -1.263 0.289 0.000
C3 0.000 0.991 0.000
C4 1.059 0.111 0.000
H5 -1.905 -1.836 0.000
C6 -1.122 -1.077 0.000
S7 0.550 -1.553 0.000
H8 1.175 2.814 0.000
H9 -0.366 2.935 0.889
H10 -0.366 2.935 -0.889
C11 0.120 2.495 0.000
H12 2.124 0.350 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 C4 H5 C6 S7 H8 H9 H10 C11 H12
H11.09382.23923.36132.65422.17863.64143.95742.97242.97242.89974.3778
C21.09381.44462.32902.22011.37352.58423.50922.93162.93162.60383.3871
C32.23921.44461.37713.40882.35272.60242.16862.16862.16861.50932.2184
C43.36132.32901.37713.54672.48401.74012.70523.28553.28552.56271.0909
H52.65422.22013.40883.54671.09052.47125.57725.09135.09134.78144.5837
C62.17861.37352.35272.48401.09051.73824.51814.17834.17833.78223.5457
S73.64142.58422.60241.74012.47121.73824.41104.66554.66554.07092.4694
H83.95743.50922.16862.70525.57724.51814.41101.78241.78241.10152.6403
H92.97242.93162.16863.28555.09134.17834.66551.78241.77741.10403.6971
H102.97242.93162.16863.28555.09134.17834.66551.78241.77741.10403.6971
C112.89972.60381.50932.56274.78143.78224.07091.10151.10401.10402.9355
H124.37783.38712.21841.09094.58373.54572.46942.64033.69713.69712.9355

picture of Thiophene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 123.212 H1 C2 C6 123.611
C2 C3 C4 111.233 C2 C3 C11 123.626
C2 C6 H5 128.219 C2 C6 S7 111.765
C3 C2 C6 113.177 C3 C4 S7 112.681
C3 C4 H12 127.637 C3 C11 H8 111.367
C3 C11 H9 111.211 C3 C11 H10 111.211
C4 C3 C11 125.142 C4 S7 C6 91.145
H5 C6 S7 120.016 S7 C4 H12 119.682
H8 C11 H9 107.826 H8 C11 H10 107.826
H9 C11 H10 107.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.142      
2 C -0.120      
3 C 0.191      
4 C -0.419      
5 H 0.181      
6 C -0.376      
7 S 0.271      
8 H 0.169      
9 H 0.177      
10 H 0.177      
11 C -0.569      
12 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.336 0.893 0.000 0.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.300 1.499 0.002
y 1.499 -40.037 0.001
z 0.002 0.001 -45.685
Traceless
 xyz
x 4.560 1.499 0.002
y 1.499 1.955 0.001
z 0.002 0.001 -6.516
Polar
3z2-r2-13.031
x2-y21.737
xy1.499
xz0.002
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.501 -0.387 0.001
y -0.387 12.796 0.001
z 0.001 0.001 5.056


<r2> (average value of r2) Å2
<r2> 189.204
(<r2>)1/2 13.755