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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-591.885853
Energy at 298.15K-591.891849
Nuclear repulsion energy270.859073
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 PBEPBE/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 3205 3161 0.71      
2 A 3161 3118 6.00      
3 A 3144 3101 7.53      
4 A 3073 3031 9.84      
5 A 2978 2937 31.24      
6 A 1560 1538 2.89      
7 A 1475 1455 4.91      
8 A 1456 1436 7.80      
9 A 1376 1357 0.07      
10 A 1352 1333 1.12      
11 A 1221 1204 9.81      
12 A 1160 1144 11.16      
13 A 1073 1059 2.26      
14 A 1046 1031 4.49      
15 A 965 952 1.84      
16 A 837 826 11.03      
17 A 729 719 0.27      
18 A 654 645 1.76      
19 A 539 532 0.67      
20 A 296 292 0.85      
21 A 3039 2998 13.13      
22 A 1442 1422 7.92      
23 A 1021 1007 1.40      
24 A 861 849 0.33      
25 A 790 779 11.14      
26 A 669 660 55.52      
27 A 555 548 0.82      
28 A 459 453 4.72      
29 A 225 221 2.58      
30 A 101 100 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 20229.9 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 19952.7 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 PBEPBE/6-31G**
ABC
0.17344 0.10249 0.06522

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.403 -1.560 0.000
C2 -1.444 -1.038 0.000
H3 -2.155 1.078 0.000
C4 -1.310 0.386 0.000
C5 0.000 0.821 0.000
H6 -0.027 -2.755 0.000
C7 -0.231 -1.686 0.000
S8 1.088 -0.553 0.000
H9 -0.323 2.934 0.000
H10 1.139 2.442 0.889
H11 1.139 2.442 -0.889
C12 0.521 2.227 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.09202.65002.23223.38312.65942.17583.63414.95215.41775.41774.7848
C21.09202.23201.42972.35382.22671.37562.57894.12674.42364.42363.8106
H32.65002.23201.09292.17074.38453.36783.63072.60783.67443.67442.9126
C42.23221.42971.09291.38023.39282.33552.57532.73243.31853.31852.5966
C53.38312.35382.17071.38023.57632.51721.75262.13742.17122.17121.4995
H62.65942.22674.38453.39283.57631.08882.46925.69685.39995.39995.0124
C72.17581.37563.36782.33552.51721.08881.73924.62044.43874.43873.9843
S83.63412.57893.63072.57531.75262.46921.73923.76143.12393.12392.8370
H94.95214.12672.60782.73242.13745.69684.62043.76141.78041.78041.1010
H105.41774.42363.67443.31852.17125.39994.43873.12391.78041.77801.1036
H115.41774.42363.67443.31852.17125.39994.43873.12391.78041.77801.1036
C124.78483.81062.91262.59661.49955.01243.98432.83701.10101.10361.1036

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 123.996 H1 C2 C7 123.299
C2 C4 H3 123.908 C2 C4 C5 113.780
C2 C7 H6 128.886 C2 C7 S8 111.240
H3 C4 C5 122.313 C4 C2 C7 112.705
C4 C5 S8 110.017 C4 C5 C12 128.713
C5 S8 C7 92.257 C5 C12 H9 109.602
C5 C12 H10 112.143 C5 C12 H11 112.143
H6 C7 S8 119.874 S8 C5 C12 121.270
H9 C12 H10 107.715 H9 C12 H11 107.715
H10 C12 H11 107.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.104      
2 C -0.063      
3 H 0.098      
4 C -0.070      
5 C -0.160      
6 H 0.137      
7 C -0.328      
8 S 0.257      
9 H 0.140      
10 H 0.146      
11 H 0.146      
12 C -0.409      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.442 0.562 0.000 0.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.812 0.764 0.000
y 0.764 -36.763 0.000
z 0.000 0.000 -45.613
Traceless
 xyz
x 0.375 0.764 0.000
y 0.764 6.450 0.000
z 0.000 0.000 -6.825
Polar
3z2-r2-13.650
x2-y2-4.050
xy0.764
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.419 0.496 0.000
y 0.496 12.213 0.000
z 0.000 0.000 5.080


<r2> (average value of r2) Å2
<r2> 178.873
(<r2>)1/2 13.374