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All results from a given calculation for C5H6S (Thiophene, 3-methyl-)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-590.213923
Energy at 298.15K-590.220539
Nuclear repulsion energy267.415900
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/6-31G
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' 3470 3133 1.86      
2 A' 3461 3124 1.73      
3 A' 3392 3063 6.94      
4 A' 3276 2958 22.54      
5 A' 3187 2877 37.56      
6 A' 1791 1617 1.30      
7 A' 1666 1505 17.90      
8 A' 1643 1483 8.66      
9 A' 1587 1433 1.70      
10 A' 1518 1371 4.82      
11 A' 1390 1255 6.68      
12 A' 1282 1157 2.52      
13 A' 1231 1112 1.85      
14 A' 1130 1021 6.12      
15 A' 1016 918 2.38      
16 A' 873 788 21.76      
17 A' 839 758 8.86      
18 A' 696 628 2.92      
19 A' 572 517 3.16      
20 A' 348 314 1.00      
21 A" 3243 2928 29.30      
22 A" 1643 1483 8.28      
23 A" 1207 1089 8.21      
24 A" 1102 995 1.24      
25 A" 932 841 85.85      
26 A" 850 768 27.49      
27 A" 681 615 19.14      
28 A" 476 430 0.99      
29 A" 255 230 2.51      
30 A" 139 125 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 22447.3 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 20267.7 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 HF/6-31G
ABC
0.22734 0.08020 0.05994

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.211 0.769 0.000
C2 -1.262 0.270 0.000
C3 0.000 0.988 0.000
C4 1.059 0.161 0.000
H5 -1.906 -1.802 0.000
C6 -1.136 -1.064 0.000
S7 0.581 -1.567 0.000
H8 1.107 2.827 0.000
H9 -0.410 2.904 0.875
H10 -0.410 2.904 -0.875
C11 0.079 2.488 0.000
H12 2.094 0.419 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 C4 H5 C6 S7 H8 H9 H10 C11 H12
H11.07182.22143.32572.58872.12473.63983.90422.92722.92722.86374.3190
C21.07181.45132.32332.17071.34082.60233.48522.90282.90282.59173.3591
C32.22141.45131.34393.37912.34582.62022.14682.14592.14591.50282.1701
C43.32572.32331.34393.55622.51391.79282.66723.23243.23242.52581.0669
H52.58872.17073.37913.55621.06652.49835.52375.01525.01524.72784.5759
C62.12471.34082.34582.51391.06651.78924.49184.12804.12803.75503.5548
S73.63982.60232.62021.79282.49831.78924.42594.66234.66234.08662.4971
H83.90423.48522.14682.66725.52374.49184.42591.75251.75251.08212.6030
H92.92722.90282.14593.23245.01524.12804.66231.75251.75041.08503.6345
H102.92722.90282.14593.23245.01524.12804.66231.75251.75041.08503.6345
C112.86372.59171.50282.52584.72783.75504.08661.08211.08501.08502.8886
H124.31903.35912.17011.06694.57593.55482.49712.60303.63453.63452.8886

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 122.685 H1 C2 C6 123.058
C2 C3 C4 112.384 C2 C3 C11 122.638
C2 C6 H5 128.402 C2 C6 S7 111.687
C3 C2 C6 114.257 C3 C4 S7 112.522
C3 C4 H12 127.991 C3 C11 H8 111.266
C3 C11 H9 111.009 C3 C11 H10 111.009
C4 C3 C11 124.977 C4 S7 C6 89.150
H5 C6 S7 119.911 S7 C4 H12 119.487
H8 C11 H9 107.932 H8 C11 H10 107.932
H9 C11 H10 107.534
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.212 0.129    
2 C -0.103 -0.189    
3 C 0.086 0.215    
4 C -0.592 -0.324    
5 H 0.227 0.186    
6 C -0.551 -0.150    
7 S 0.445 -0.084    
8 H 0.170 0.046    
9 H 0.174 0.070    
10 H 0.174 0.070    
11 C -0.465 -0.200    
12 H 0.222 0.231    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.800 1.603 0.000 1.791
CHELPG -0.770 1.442 0.000 1.635
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.942 2.456 0.000
y 2.456 -42.069 0.000
z 0.000 0.000 -47.589
Traceless
 xyz
x 5.886 2.456 0.000
y 2.456 1.197 0.000
z 0.000 0.000 -7.083
Polar
3z2-r2-14.167
x2-y23.126
xy2.456
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.758 -0.682 0.000
y -0.682 11.685 0.000
z 0.000 0.000 4.523


<r2> (average value of r2) Å2
<r2> 190.807
(<r2>)1/2 13.813