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All results from a given calculation for C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-553.189112
Energy at 298.15K-553.195894
HF Energy-552.468709
Nuclear repulsion energy215.623138
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 CCD/6-31+G**
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 3088 17.47      
2 A1 3126 2945 0.10      
3 A1 1748 1647 9.22      
4 A1 1548 1458 5.64      
5 A1 1357 1278 0.67      
6 A1 1175 1107 0.37      
7 A1 987 930 0.05      
8 A1 747 704 1.54      
9 A1 531 501 0.26      
10 A2 3170 2987 0.00      
11 A2 1168 1101 0.00      
12 A2 1009 951 0.00      
13 A2 951 896 0.00      
14 A2 366 345 0.00      
15 B1 3171 2988 14.75      
16 B1 1154 1088 14.22      
17 B1 953 898 1.55      
18 B1 687 647 51.90      
19 B1 63 59 4.72      
20 B2 3253 3066 4.14      
21 B2 3126 2945 62.67      
22 B2 1542 1453 0.10      
23 B2 1409 1327 2.36      
24 B2 1320 1244 9.28      
25 B2 1008 950 4.78      
26 B2 845 796 0.63      
27 B2 670 632 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20179.7 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 19015.4 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 CCD/6-31+G**
ABC
0.22091 0.15874 0.09566

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.250
C2 0.000 1.347 0.004
C3 0.000 -1.347 0.004
C4 0.000 0.668 -1.340
C5 0.000 -0.668 -1.340
H6 -0.883 1.975 0.131
H7 0.883 1.975 0.131
H8 0.883 -1.975 0.131
H9 -0.883 -1.975 0.131
H10 0.000 1.264 -2.244
H11 0.000 -1.264 -2.244

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83441.83442.67432.67432.43532.43532.43532.43533.71513.7151
C21.83442.69331.50562.42161.09101.09103.43913.43912.24933.4450
C31.83442.69332.42161.50563.43913.43911.09101.09103.44502.2493
C42.67431.50562.42161.33582.15662.15663.15063.15061.08282.1329
C52.67432.42161.50561.33583.15063.15062.15662.15662.13291.0828
H62.43531.09103.43912.15663.15061.76584.32633.94952.63144.1120
H72.43531.09103.43912.15663.15061.76583.94954.32632.63144.1120
H82.43533.43911.09103.15062.15664.32633.94951.76584.11202.6314
H92.43533.43911.09103.15062.15663.94954.32631.76584.11202.6314
H103.71512.24933.44501.08282.13292.63142.63144.11204.11202.5281
H113.71513.44502.24932.13291.08284.11204.11202.63142.63142.5281

picture of Thiophene, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 105.972 S1 C2 H6 110.098
S1 C2 H7 110.098 S1 C3 C5 105.972
S1 C3 H8 110.098 S1 C3 H9 110.098
C2 S1 C3 94.463 C2 C4 C5 116.796
C2 C4 H10 119.796 C3 C5 C4 116.796
C3 C5 H11 119.796 C4 C2 H6 111.313
C4 C2 H7 111.313 C4 C5 H11 123.407
C5 C3 H8 111.313 C5 C3 H9 111.313
C5 C4 H10 123.407 H6 C2 H7 108.055
H8 C3 H9 108.055
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability