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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-552.068869
Energy at 298.15K-552.073225
Nuclear repulsion energy201.847527
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 QCISD/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 3272 3122 2.21      
2 A1 3242 3093 4.04      
3 A1 1472 1405 17.53      
4 A1 1422 1357 0.01      
5 A1 1118 1067 4.79      
6 A1 1057 1008 0.88      
7 A1 856 817 28.87      
8 A1 622 593 0.19      
9 A2 872 832 0.00      
10 A2 684 653 0.00      
11 A2 535 510 0.00      
12 B1 870 830 0.22      
13 B1 718 685 133.61      
14 B1 443 422 0.77      
15 B2 3269 3119 1.48      
16 B2 3228 3080 4.36      
17 B2 1586 1513 0.00      
18 B2 1297 1238 9.11      
19 B2 1121 1069 3.14      
20 B2 894 853 1.11      
21 B2 766 731 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 14671.7 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 13998.3 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 QCISD/6-311G**
ABC
0.26708 0.17838 0.10695

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.199
C2 0.000 1.237 -0.009
C3 0.000 -1.237 -0.009
C4 0.000 0.719 -1.275
C5 0.000 -0.719 -1.275
H6 0.000 2.278 0.285
H7 0.000 -2.278 0.285
H8 0.000 1.328 -2.172
H9 0.000 -1.328 -2.172

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.72841.72842.57652.57652.45482.45483.62333.6233
C21.72842.47351.36862.32981.08203.52722.16573.3556
C31.72842.47352.32981.36863.52721.08203.35562.1657
C42.57651.36862.32981.43722.20603.37871.08442.2346
C52.57652.32981.36861.43723.37872.20602.23461.0844
H62.45481.08203.52722.20603.37874.55652.63454.3638
H72.45483.52721.08203.37872.20604.55654.36382.6345
H83.62332.16573.35561.08442.23462.63454.36382.6561
H93.62333.35562.16572.23461.08444.36382.63452.6561

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 112.068 S1 C2 H6 119.957
S1 C3 C5 112.068 S1 C3 H7 119.957
C2 S1 C3 91.374 C2 C4 C5 112.244
C2 C4 H8 123.563 C3 C5 C4 112.244
C3 C5 H9 123.563 C4 C2 H6 127.975
C4 C5 H9 124.193 C5 C3 H7 127.975
C5 C4 H8 124.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability