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

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-553.167028
Energy at 298.15K-553.173816
HF Energy-552.465022
Nuclear repulsion energy216.371799
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3292 3076 13.69      
2 A1 3138 2932 0.16      
3 A1 1726 1613 5.44      
4 A1 1551 1450 5.74      
5 A1 1346 1257 0.41      
6 A1 1170 1093 0.43      
7 A1 993 928 0.03      
8 A1 753 704 1.83      
9 A1 531 496 0.18      
10 A2 3190 2981 0.00      
11 A2 1186 1109 0.00      
12 A2 1006 940 0.00      
13 A2 953 890 0.00      
14 A2 365 341 0.00      
15 B1 3192 2983 18.38      
16 B1 1170 1093 10.60      
17 B1 948 886 0.29      
18 B1 693 648 40.87      
19 B1 66 62 4.45      
20 B2 3268 3054 1.96      
21 B2 3138 2932 54.97      
22 B2 1547 1446 0.50      
23 B2 1400 1309 2.43      
24 B2 1306 1220 7.51      
25 B2 1013 946 4.78      
26 B2 842 787 0.62      
27 B2 672 628 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20228.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 18901.2 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=FULL/6-31G**
ABC
0.22224 0.16009 0.09639

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.244
C2 0.000 1.341 0.004
C3 0.000 -1.341 0.004
C4 0.000 0.668 -1.334
C5 0.000 -0.668 -1.334
H6 -0.881 1.970 0.133
H7 0.881 1.970 0.133
H8 0.881 -1.970 0.133
H9 -0.881 -1.970 0.133
H10 0.000 1.262 -2.237
H11 0.000 -1.262 -2.237

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82691.82692.66312.66312.42722.42722.42722.42723.70313.7031
C21.82692.68251.49762.41351.08991.08993.42853.42852.24223.4351
C31.82692.68252.41351.49763.42853.42851.08991.08993.43512.2422
C42.66311.49762.41351.33542.14992.14993.14373.14371.08142.1309
C52.66312.41351.49761.33543.14373.14372.14992.14992.13091.0814
H62.42721.08993.42852.14993.14371.76234.31553.93932.62544.1034
H72.42721.08993.42852.14993.14371.76233.93934.31552.62544.1034
H82.42723.42851.08993.14372.14994.31553.93931.76234.10342.6254
H92.42723.42851.08993.14372.14993.93934.31551.76234.10342.6254
H103.70312.24223.43511.08142.13092.62542.62544.10344.10342.5246
H113.70313.43512.24222.13091.08144.10344.10342.62542.62542.5246

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 106.037 S1 C2 H6 110.057
S1 C2 H7 110.057 S1 C3 C5 106.037
S1 C3 H8 110.057 S1 C3 H9 110.057
C2 S1 C3 94.471 C2 C4 C5 116.727
C2 C4 H10 119.919 C3 C5 C4 116.727
C3 C5 H11 119.919 C4 C2 H6 111.406
C4 C2 H7 111.406 C4 C5 H11 123.354
C5 C3 H8 111.406 C5 C3 H9 111.406
C5 C4 H10 123.354 H6 C2 H7 107.888
H8 C3 H9 107.888
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability