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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-592.340163
Energy at 298.15K-592.346349
Nuclear repulsion energy273.366838
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 mPW1PW91/6-311G*
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 3275 3125 1.79      
2 A 3236 3089 9.36      
3 A 3218 3072 9.48      
4 A 3143 3000 14.78      
5 A 3057 2917 34.32      
6 A 1619 1545 3.29      
7 A 1523 1454 4.18      
8 A 1511 1443 14.68      
9 A 1433 1368 0.32      
10 A 1402 1338 0.68      
11 A 1272 1214 12.09      
12 A 1199 1145 12.10      
13 A 1113 1062 2.89      
14 A 1077 1028 4.35      
15 A 1004 958 1.40      
16 A 870 830 15.16      
17 A 761 727 0.36      
18 A 682 651 2.11      
19 A 560 534 0.62      
20 A 306 292 0.92      
21 A 3115 2973 17.24      
22 A 1502 1434 10.55      
23 A 1068 1019 0.92      
24 A 902 861 0.30      
25 A 828 790 14.93      
26 A 700 668 82.86      
27 A 575 548 0.34      
28 A 477 455 6.96      
29 A 233 223 3.86      
30 A 99 95 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 20879.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19927.8 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 mPW1PW91/6-311G*
ABC
0.17698 0.10423 0.06641

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.381 -1.549 0.000
C2 -1.431 -1.031 0.000
H3 -2.135 1.070 0.000
C4 -1.296 0.385 0.000
C5 0.000 0.811 0.000
H6 -0.031 -2.730 0.000
C7 -0.230 -1.670 0.000
S8 1.077 -0.548 0.000
H9 -0.314 2.914 0.000
H10 1.130 2.419 0.881
H11 1.130 2.419 -0.881
C12 0.519 2.209 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08242.63052.21743.35242.63092.15463.60064.91815.37145.37144.7470
C21.08242.21581.42202.33222.20201.36012.55434.09964.38614.38613.7814
H32.63052.21581.08332.15104.34413.33683.59682.59143.64143.64142.8881
C42.21741.42201.08331.36443.36222.31432.55002.71283.28663.28662.5734
C53.35242.33222.15101.36443.54092.49081.73362.12632.15422.15421.4916
H62.63092.20204.34413.36223.54091.07932.44765.65095.35135.35134.9698
C72.15461.36013.33682.31432.49081.07931.72274.58384.39794.39793.9503
S83.60062.55433.59682.55001.73362.44761.72273.73053.09513.09512.8128
H94.91814.09962.59142.71282.12635.65094.58383.73051.76291.76291.0908
H105.37144.38613.64143.28662.15425.35134.39793.09511.76291.76251.0930
H115.37144.38613.64143.28662.15425.35134.39793.09511.76291.76251.0930
C124.74703.78142.88812.57341.49164.96983.95032.81281.09081.09301.0930

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 124.036 H1 C2 C7 123.402
C2 C4 H3 123.796 C2 C4 C5 113.630
C2 C7 H6 128.659 C2 C7 S8 111.366
H3 C4 C5 122.574 C4 C2 C7 112.562
C4 C5 S8 110.227 C4 C5 C12 128.536
C5 S8 C7 92.215 C5 C12 H9 109.877
C5 C12 H10 111.990 C5 C12 H11 111.990
H6 C7 S8 119.975 S8 C5 C12 121.237
H9 C12 H10 107.659 H9 C12 H11 107.659
H10 C12 H11 107.467
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.207      
2 C -0.188      
3 H 0.205      
4 C -0.186      
5 C -0.179      
6 H 0.239      
7 C -0.415      
8 S 0.284      
9 H 0.240      
10 H 0.245      
11 H 0.245      
12 C -0.698      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.456 0.542 0.000 0.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.977 0.692 0.000
y 0.692 -37.076 0.000
z 0.000 0.000 -46.605
Traceless
 xyz
x 0.864 0.692 0.000
y 0.692 6.714 0.000
z 0.000 0.000 -7.578
Polar
3z2-r2-15.156
x2-y2-3.900
xy0.692
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 176.457
(<r2>)1/2 13.284