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All results from a given calculation for C4H4S (Thiophene)

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 C2V 1A1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-552.615474
Energy at 298.15K-552.619703
Nuclear repulsion energy201.038774
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 A1 3208 3162 1.29      
2 A1 3167 3122 5.54      
3 A1 1442 1421 8.00      
4 A1 1371 1351 0.35      
5 A1 1081 1066 4.05      
6 A1 1046 1031 2.46      
7 A1 831 819 20.92      
8 A1 599 591 0.09      
9 A2 871 859 0.00      
10 A2 646 637 0.00      
11 A2 557 549 0.00      
12 B1 827 815 0.30      
13 B1 702 692 111.76      
14 B1 444 438 1.33      
15 B2 3206 3160 0.35      
16 B2 3153 3108 4.74      
17 B2 1529 1507 0.00      
18 B2 1241 1224 10.56      
19 B2 1084 1069 4.14      
20 B2 857 844 0.96      
21 B2 736 726 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 14298.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 14094.0 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
0.26449 0.17742 0.10619

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.201
C2 0.000 1.247 -0.008
C3 0.000 -1.247 -0.008
C4 0.000 0.715 -1.279
C5 0.000 -0.715 -1.279
H6 0.000 2.294 0.292
H7 0.000 -2.294 0.292
H8 0.000 1.327 -2.184
H9 0.000 -1.327 -2.184

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.73691.73692.58112.58112.46812.46813.63633.6363
C21.73692.49361.37762.33741.08973.55392.17793.3704
C31.73692.49362.33741.37763.55391.08973.37042.1779
C42.58111.37762.33741.43002.22753.39471.09282.2335
C52.58112.33741.37761.43003.39472.22752.23351.0928
H62.46811.08973.55392.22753.39474.58882.65874.3868
H72.46813.55391.08973.39472.22754.58884.38682.6587
H83.63632.17793.37041.09282.23352.65874.38682.6533
H93.63633.37042.17792.23351.09284.38682.65872.6533

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.416 S1 C2 H6 119.900
S1 C3 C5 111.416 S1 C3 H7 119.900
C2 S1 C3 91.750 C2 C4 C5 112.709
C2 C4 H8 123.255 C3 C5 C4 112.709
C3 C5 H9 123.255 C4 C2 H6 128.684
C4 C5 H9 124.036 C5 C3 H7 128.684
C5 C4 H8 124.036
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 S 0.280      
2 C -0.373      
3 C -0.373      
4 C -0.101      
5 C -0.101      
6 H 0.184      
7 H 0.184      
8 H 0.149      
9 H 0.149      


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 -0.584 0.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.483 0.000 0.000
y 0.000 -30.828 0.000
z 0.000 0.000 -34.134
Traceless
 xyz
x -7.003 0.000 0.000
y 0.000 5.981 0.000
z 0.000 0.000 1.022
Polar
3z2-r22.044
x2-y2-8.656
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.589 0.000 0.000
y 0.000 9.122 0.000
z 0.000 0.000 9.981


<r2> (average value of r2) Å2
<r2> 113.012
(<r2>)1/2 10.631