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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-552.037151
Energy at 298.15K-552.041458
HF Energy-551.344482
Nuclear repulsion energy202.555553
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 MP2/6-311G**
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 3284 3120 2.01      
2 A1 3255 3093 2.11      
3 A1 1448 1376 9.67      
4 A1 1402 1332 2.43      
5 A1 1103 1048 6.11      
6 A1 1075 1021 2.01      
7 A1 882 838 25.84      
8 A1 625 594 0.00      
9 A2 839 797 0.00      
10 A2 646 614 0.00      
11 A2 518 492 0.00      
12 B1 825 784 0.01      
13 B1 705 669 141.69      
14 B1 445 423 2.34      
15 B2 3281 3117 0.07      
16 B2 3241 3080 3.42      
17 B2 1529 1453 0.00      
18 B2 1282 1218 10.35      
19 B2 1107 1051 4.78      
20 B2 903 858 1.04      
21 B2 775 737 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 14583.9 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 13857.6 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 MP2/6-311G**
ABC
0.26948 0.17956 0.10776

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

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 0.001
C3 0.000 -1.233 0.001
C4 0.000 0.710 -1.276
C5 0.000 -0.710 -1.276
H6 0.000 2.273 0.298
H7 0.000 -2.273 0.298
H8 0.000 1.325 -2.169
H9 0.000 -1.325 -2.169

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71301.71302.56672.56672.44182.44183.61093.6109
C21.71302.46621.38032.32571.08153.51872.17193.3546
C31.71302.46622.32571.38033.51871.08153.35462.1719
C42.56671.38032.32571.42052.21843.37331.08382.2224
C52.56672.32571.38031.42053.37332.21842.22241.0838
H62.44181.08153.51872.21843.37334.54612.64294.3627
H72.44183.51871.08153.37332.21844.54614.36272.6429
H83.61092.17193.35461.08382.22242.64294.36272.6502
H93.61093.35462.17192.22241.08384.36272.64292.6502

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.698 S1 C2 H6 120.103
S1 C3 C5 111.698 S1 C3 H7 120.103
C2 S1 C3 92.087 C2 C4 C5 112.259
C2 C4 H8 123.180 C3 C5 C4 112.259
C3 C5 H9 123.180 C4 C2 H6 128.200
C4 C5 H9 124.561 C5 C3 H7 128.200
C5 C4 H8 124.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability