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All results from a given calculation for C4H4S (Thiophene)

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 C2V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-553.032939
Energy at 298.15K-553.037361
Nuclear repulsion energy203.022650
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
4/u)
Dep P Dep U
1 A1 3277 3135 1.51      
2 A1 3241 3101 3.24      
3 A1 1474 1410 13.02      
4 A1 1409 1348 0.21      
5 A1 1108 1060 5.01      
6 A1 1067 1021 2.62      
7 A1 859 822 28.17      
8 A1 622 595 0.15      
9 A2 925 885 0.00      
10 A2 692 662 0.00      
11 A2 576 551 0.00      
12 B1 887 849 0.21      
13 B1 730 698 145.86      
14 B1 460 440 1.02      
15 B2 3274 3132 0.02      
16 B2 3227 3088 3.99      
17 B2 1578 1510 0.01      
18 B2 1281 1225 10.02      
19 B2 1111 1063 5.22      
20 B2 889 850 1.86      
21 B2 768 734 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 14727.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 14090.0 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 mPW1PW91/6-311G**
ABC
0.26952 0.18100 0.10828

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.190
C2 0.000 1.234 -0.008
C3 0.000 -1.234 -0.008
C4 0.000 0.711 -1.266
C5 0.000 -0.711 -1.266
H6 0.000 2.271 0.289
H7 0.000 -2.271 0.289
H8 0.000 1.317 -2.162
H9 0.000 -1.317 -2.162

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71941.71942.55642.55642.44312.44313.60063.6006
C21.71942.46761.36252.31611.07863.51712.15533.3382
C31.71942.46762.31611.36253.51711.07863.33822.1553
C42.55641.36252.31611.42162.20233.36251.08142.2166
C52.55642.31611.36251.42163.36252.20232.21661.0814
H62.44311.07863.51712.20233.36254.54172.62934.3444
H72.44313.51711.07863.36252.20234.54174.34442.6293
H83.60062.15533.33821.08142.21662.62934.34442.6336
H93.60063.33822.15532.21661.08144.34442.62932.6336

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.571 S1 C2 H6 119.903
S1 C3 C5 111.571 S1 C3 H7 119.903
C2 S1 C3 91.711 C2 C4 C5 112.573
C2 C4 H8 123.341 C3 C5 C4 112.573
C3 C5 H9 123.341 C4 C2 H6 128.526
C4 C5 H9 124.085 C5 C3 H7 128.526
C5 C4 H8 124.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.278      
2 C -0.307      
3 C -0.307      
4 C -0.095      
5 C -0.095      
6 H 0.152      
7 H 0.152      
8 H 0.112      
9 H 0.112      


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 -0.549 0.549
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.248 0.000 0.000
y 0.000 -31.150 0.000
z 0.000 0.000 -34.388
Traceless
 xyz
x -7.479 0.000 0.000
y 0.000 6.167 0.000
z 0.000 0.000 1.311
Polar
3z2-r22.623
x2-y2-9.097
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.039 0.000 0.000
y 0.000 9.163 0.000
z 0.000 0.000 10.260


<r2> (average value of r2) Å2
<r2> 111.521
(<r2>)1/2 10.560