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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-590.424679
Energy at 298.15K-590.431243
Nuclear repulsion energy274.678196
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 HF/6-311+G(3df,2p)
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 3392 3082 1.86      
2 A 3354 3047 7.58      
3 A 3337 3032 9.30      
4 A 3239 2943 19.02      
5 A 3165 2876 35.01      
6 A 1733 1575 3.03      
7 A 1618 1470 3.69      
8 A 1606 1459 21.56      
9 A 1541 1400 2.08      
10 A 1496 1359 0.25      
11 A 1379 1253 8.65      
12 A 1253 1138 14.08      
13 A 1195 1085 0.88      
14 A 1120 1018 0.72      
15 A 1071 973 1.78      
16 A 912 829 16.84      
17 A 801 727 0.47      
18 A 712 647 3.50      
19 A 588 534 0.75      
20 A 324 294 1.02      
21 A 3214 2921 18.68      
22 A 1599 1453 7.88      
23 A 1159 1053 0.24      
24 A 1044 949 0.11      
25 A 947 860 13.10      
26 A 798 725 85.90      
27 A 616 559 0.01      
28 A 519 472 4.93      
29 A 254 231 3.55      
30 A 118 107 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 22050.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 20035.2 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 HF/6-311+G(3df,2p)
ABC
0.18001 0.10446 0.06691

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.365 -1.539 0.000
C2 -1.420 -1.033 0.000
H3 -2.113 1.070 0.000
C4 -1.281 0.393 0.000
C5 0.000 0.804 0.000
H6 -0.053 -2.718 0.000
C7 -0.237 -1.665 0.000
S8 1.068 -0.549 0.000
H9 -0.307 2.908 0.000
H10 1.127 2.407 0.876
H11 1.127 2.407 -0.876
C12 0.520 2.210 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07192.62142.21603.32952.59472.13193.57304.90035.34195.34194.7311
C21.07192.21441.43342.32232.16941.34142.53484.09524.36934.36933.7795
H32.62142.21441.07262.12984.31173.31663.56952.57693.61313.61312.8696
C42.21601.43341.07261.34513.34462.30792.53092.69653.25883.25882.5582
C53.32952.32232.12981.34513.52252.48041.72402.12572.14622.14621.4992
H62.59472.16944.31173.34463.52251.06892.44155.63135.33135.33134.9613
C72.13191.34143.31662.30792.48041.06891.71684.57314.38254.38253.9483
S83.57302.53483.56952.53091.72402.44151.71683.72023.08353.08352.8133
H94.90034.09522.57692.69652.12575.63134.57313.72021.75321.75321.0817
H105.34194.36933.61313.25882.14625.33134.38253.08351.75321.75121.0835
H115.34194.36933.61313.25882.14625.33134.38253.08351.75321.75121.0835
C124.73113.77952.86962.55821.49924.96133.94832.81331.08171.08351.0835

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 123.755 H1 C2 C7 123.733
C2 C4 H3 123.530 C2 C4 C5 113.363
C2 C7 H6 127.972 C2 C7 S8 111.377
H3 C4 C5 123.107 C4 C2 C7 112.512
C4 C5 S8 110.495 C4 C5 C12 128.087
C5 S8 C7 92.253 C5 C12 H9 109.846
C5 C12 H10 111.384 C5 C12 H11 111.384
H6 C7 S8 120.651 S8 C5 C12 121.418
H9 C12 H10 108.139 H9 C12 H11 108.139
H10 C12 H11 107.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.135      
2 C -0.263      
3 H 0.115      
4 C 0.006      
5 C 0.423      
6 H 0.143      
7 C -0.248      
8 S -0.450      
9 H 0.122      
10 H 0.145      
11 H 0.145      
12 C -0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.654 0.591 0.000 0.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.961 0.850 0.000
y 0.850 -37.761 0.000
z 0.000 0.000 -47.322
Traceless
 xyz
x 0.580 0.850 0.000
y 0.850 6.881 0.000
z 0.000 0.000 -7.461
Polar
3z2-r2-14.922
x2-y2-4.201
xy0.850
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.334 0.365 0.000
y 0.365 12.396 0.000
z 0.000 0.000 7.632


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