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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-552.615463
Energy at 298.15K-552.619691
HF Energy-552.615463
Nuclear repulsion energy201.041771
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 PBEPBEultrafine/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 3207 3154 1.29      
2 A1 3166 3113 5.52      
3 A1 1441 1417 8.03      
4 A1 1371 1348 0.32      
5 A1 1081 1063 4.11      
6 A1 1045 1028 2.43      
7 A1 831 817 20.92      
8 A1 599 589 0.09      
9 A2 871 857 0.00      
10 A2 645 635 0.00      
11 A2 557 547 0.00      
12 B1 827 813 0.29      
13 B1 701 690 111.79      
14 B1 443 436 1.34      
15 B2 3205 3152 0.34      
16 B2 3152 3100 4.74      
17 B2 1529 1503 0.00      
18 B2 1241 1221 10.55      
19 B2 1084 1066 4.12      
20 B2 856 842 0.96      
21 B2 736 724 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 14293.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 14057.5 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 PBEPBEultrafine/6-31G*
ABC
0.26443 0.17746 0.10619

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/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 2.295 0.292
H7 0.000 -2.295 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
S11.73671.73672.58102.58102.46822.46823.63603.6360
C21.73672.49371.37772.33771.08973.55412.17753.3708
C31.73672.49372.33771.37773.55411.08973.37082.1775
C42.58101.37772.33771.43032.22743.39491.09282.2341
C52.58102.33771.37771.43033.39492.22742.23411.0928
H62.46821.08973.55412.22743.39494.58912.65794.3873
H72.46823.55411.08973.39492.22744.58914.38732.6579
H83.63602.17753.37081.09282.23412.65794.38732.6549
H93.63603.37082.17752.23411.09284.38732.65792.6549

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.412 S1 C2 H6 119.923
S1 C3 C5 111.412 S1 C3 H7 119.923
C2 S1 C3 91.768 C2 C4 C5 112.703
C2 C4 H8 123.218 C3 C5 C4 112.703
C3 C5 H9 123.218 C4 C2 H6 128.665
C4 C5 H9 124.079 C5 C3 H7 128.665
C5 C4 H8 124.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.281      
2 C -0.372      
3 C -0.372      
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 -30.823 -0.012
z 0.000 -0.012 -34.139
Traceless
 xyz
x -7.002 0.000 0.000
y 0.000 5.988 -0.012
z 0.000 -0.012 1.014
Polar
3z2-r22.028
x2-y2-8.661
xy0.000
xz0.000
yz-0.012


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.590 0.000 0.000
y 0.000 9.123 -0.004
z 0.000 -0.004 9.979


<r2> (average value of r2) Å2
<r2> 113.008
(<r2>)1/2 10.631