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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-164.878827
Energy at 298.15K-164.883152
Nuclear repulsion energy131.225527
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 B3LYP/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3304 3175 2.33      
2 A1 3248 3122 4.44      
3 A1 1478 1421 16.01      
4 A1 1383 1330 0.06      
5 A1 1123 1079 3.56      
6 A1 1049 1008 5.75      
7 A1 796 765 29.62      
8 A1 600 577 1.83      
9 A2 958 921 0.00      
10 A2 713 686 0.00      
11 A2 577 555 0.00      
12 B1 908 873 0.04      
13 B1 735 706 208.88      
14 B1 437 420 0.82      
15 B2 3298 3170 1.02      
16 B2 3232 3106 5.67      
17 B2 1565 1504 0.02      
18 B2 1276 1227 19.63      
19 B2 1123 1080 7.82      
20 B2 869 835 0.31      
21 B2 698 671 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 14684.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 14114.8 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 B3LYP/LANL2DZ
ABC
0.25710 0.17009 0.10237

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.603
C2 0.000 1.270 0.332
C3 0.000 -1.270 0.332
C4 0.000 0.723 -0.931
C5 0.000 -0.723 -0.931
H6 0.000 2.311 0.622
H7 0.000 -2.311 0.622
H8 0.000 1.321 -1.837
H9 0.000 -1.321 -1.837

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.79751.79752.63562.63562.51082.51083.68483.6848
C21.79752.54091.37632.35991.08053.59342.16893.3786
C31.79752.54092.35991.37633.59341.08053.37862.1689
C42.63561.37632.35991.44632.22143.40881.08492.2354
C52.63562.35991.37631.44633.40882.22142.23541.0849
H62.51081.08053.59342.22143.40884.62242.65094.3858
H72.51083.59341.08053.40882.22144.62244.38582.6509
H83.68482.16893.37861.08492.23542.65094.38582.6411
H93.68483.37862.16892.23541.08494.38582.65092.6411

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.597 S1 C2 H6 119.377
S1 C3 C5 111.597 S1 C3 H7 119.377
C2 S1 C3 89.945 C2 C4 C5 113.431
C2 C4 H8 123.155 C3 C5 C4 113.431
C3 C5 H9 123.155 C4 C2 H6 129.026
C4 C5 H9 123.414 C5 C3 H7 129.026
C5 C4 H8 123.414
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.239      
2 C -0.488      
3 C -0.488      
4 C -0.130      
5 C -0.130      
6 H 0.256      
7 H 0.256      
8 H 0.242      
9 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.924 0.924
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.853 0.000 0.000
y 0.000 9.004 0.000
z 0.000 0.000 9.768


<r2> (average value of r2) Å2
<r2> 96.435
(<r2>)1/2 9.820