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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-553.023566
Energy at 298.15K-553.027965
Nuclear repulsion energy202.994821
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 3127 1.74      
2 A1 3241 3093 6.91      
3 A1 1478 1411 12.77      
4 A1 1417 1352 0.22      
5 A1 1114 1064 5.54      
6 A1 1070 1021 2.60      
7 A1 860 820 28.23      
8 A1 623 595 0.16      
9 A2 913 871 0.00      
10 A2 685 654 0.00      
11 A2 575 549 0.00      
12 B1 876 836 0.32      
13 B1 725 692 153.32      
14 B1 459 439 1.23      
15 B2 3274 3125 1.31      
16 B2 3227 3080 5.11      
17 B2 1584 1512 0.02      
18 B2 1289 1230 10.09      
19 B2 1117 1066 5.51      
20 B2 891 850 1.75      
21 B2 768 733 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 14731.4 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 14059.6 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
0.26956 0.18090 0.10825

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 1.233 -0.008
C3 0.000 -1.233 -0.008
C4 0.000 0.711 -1.266
C5 0.000 -0.711 -1.266
H6 0.000 2.271 0.288
H7 0.000 -2.271 0.288
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
S11.71951.71952.55702.55702.44412.44413.60213.6021
C21.71952.46691.36242.31591.07933.51732.15613.3389
C31.71952.46692.31591.36243.51731.07933.33892.1561
C42.55701.36242.31591.42172.20223.36281.08222.2175
C52.55702.31591.36241.42173.36282.20222.21751.0822
H62.44411.07933.51732.20223.36284.54282.62934.3454
H72.44413.51731.07933.36282.20224.54284.34542.6293
H83.60212.15613.33891.08222.21752.62934.34542.6348
H93.60213.33892.15612.21751.08224.34542.62932.6348

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.612 S1 C2 H6 119.931
S1 C3 C5 111.612 S1 C3 H7 119.931
C2 S1 C3 91.666 C2 C4 C5 112.555
C2 C4 H8 123.357 C3 C5 C4 112.555
C3 C5 H9 123.357 C4 C2 H6 128.457
C4 C5 H9 124.088 C5 C3 H7 128.457
C5 C4 H8 124.088
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.303      
2 C -0.416      
3 C -0.416      
4 C -0.193      
5 C -0.193      
6 H 0.247      
7 H 0.247      
8 H 0.211      
9 H 0.211      


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 -0.572 0.572
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 111.541
(<r2>)1/2 10.561