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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-552.192766
Energy at 298.15K-552.197180
HF Energy-551.378266
Nuclear repulsion energy203.078446
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/cc-pVTZ
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 3288 3122 1.99      
2 A1 3258 3093 1.12      
3 A1 1450 1377 6.26      
4 A1 1390 1320 1.20      
5 A1 1095 1040 2.92      
6 A1 1073 1019 3.82      
7 A1 874 830 20.55      
8 A1 617 585 0.01      
9 A2 907 861 0.00      
10 A2 678 644 0.00      
11 A2 578 548 0.00      
12 B1 865 822 0.01      
13 B1 731 694 126.37      
14 B1 464 441 1.53      
15 B2 3285 3119 0.14      
16 B2 3244 3080 2.64      
17 B2 1521 1444 0.01      
18 B2 1276 1212 10.59      
19 B2 1097 1042 4.13      
20 B2 895 850 0.65      
21 B2 772 733 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 14678.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 13937.4 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/cc-pVTZ
ABC
0.27029 0.18081 0.10834

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.194
C2 0.000 1.232 -0.005
C3 0.000 -1.232 -0.005
C4 0.000 0.711 -1.273
C5 0.000 -0.711 -1.273
H6 0.000 2.268 0.289
H7 0.000 -2.268 0.289
H8 0.000 1.314 -2.168
H9 0.000 -1.314 -2.168

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71901.71902.56742.56742.44192.44193.61003.6100
C21.71902.46301.37012.31981.07733.51172.16463.3406
C31.71902.46302.31981.37013.51171.07733.34062.1646
C42.56741.37012.31981.42292.20483.36371.07952.2148
C52.56742.31981.37011.42293.36372.20482.21481.0795
H62.44191.07733.51172.20483.36374.53582.63554.3439
H72.44193.51171.07733.36372.20484.53584.34392.6355
H83.61002.16463.34061.07952.21482.63554.34392.6287
H93.61003.34062.16462.21481.07954.34392.63552.6287

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.932 S1 C2 H6 119.920
S1 C3 C5 111.932 S1 C3 H7 119.920
C2 S1 C3 91.519 C2 C4 C5 112.308
C2 C4 H8 123.737 C3 C5 C4 112.308
C3 C5 H9 123.737 C4 C2 H6 128.148
C4 C5 H9 123.954 C5 C3 H7 128.148
C5 C4 H8 123.954
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability