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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-554.239729
Energy at 298.15K-554.246485
HF Energy-554.239729
Nuclear repulsion energy215.616170
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 TPSSh/6-31G(2df,p)
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 3193 3081 22.54      
2 A1 3029 2923 0.11      
3 A1 1707 1647 7.52      
4 A1 1493 1440 5.39      
5 A1 1286 1241 1.28      
6 A1 1138 1098 0.51      
7 A1 959 926 0.03      
8 A1 715 690 2.79      
9 A1 507 489 0.00      
10 A2 3063 2956 0.00      
11 A2 1140 1100 0.00      
12 A2 969 935 0.00      
13 A2 955 922 0.00      
14 A2 377 364 0.00      
15 B1 3065 2958 22.53      
16 B1 1128 1089 10.49      
17 B1 902 870 0.53      
18 B1 686 662 34.78      
19 B1 100 97 4.16      
20 B2 3168 3057 5.27      
21 B2 3029 2923 72.83      
22 B2 1489 1437 1.16      
23 B2 1360 1313 2.47      
24 B2 1240 1197 7.20      
25 B2 972 938 7.44      
26 B2 816 788 0.69      
27 B2 643 620 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 19563.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18879.2 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 TPSSh/6-31G(2df,p)
ABC
0.22000 0.15945 0.09576

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.245
C2 0.000 1.353 0.003
C3 0.000 -1.353 0.003
C4 0.000 0.666 -1.335
C5 0.000 -0.666 -1.335
H6 -0.885 1.983 0.138
H7 0.885 1.983 0.138
H8 0.885 -1.983 0.138
H9 -0.885 -1.983 0.138
H10 0.000 1.267 -2.240
H11 0.000 -1.267 -2.240

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83641.83642.66442.66442.43752.43752.43752.43753.70803.7080
C21.83642.70511.50382.42121.09541.09543.45393.45392.24433.4484
C31.83642.70512.42121.50383.45393.45391.09541.09543.44842.2443
C42.66441.50382.42121.33112.16592.16593.15773.15771.08652.1339
C52.66442.42121.50381.33113.15773.15772.16592.16592.13391.0865
H62.43751.09543.45392.16593.15771.77074.34373.96642.63694.1236
H72.43751.09543.45392.16593.15771.77073.96644.34372.63694.1236
H82.43753.45391.09543.15772.16594.34373.96641.77074.12362.6369
H92.43753.45391.09543.15772.16593.96644.34371.77074.12362.6369
H103.70802.24433.44841.08652.13392.63692.63694.12364.12362.5339
H113.70803.44842.24432.13391.08654.12364.12362.63692.63692.5339

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 105.381 S1 C2 H6 109.890
S1 C2 H7 109.890 S1 C3 C5 105.381
S1 C3 H8 109.890 S1 C3 H9 109.890
C2 S1 C3 94.870 C2 C4 C5 117.184
C2 C4 H10 119.208 C3 C5 C4 117.184
C3 C5 H11 119.208 C4 C2 H6 111.914
C4 C2 H7 111.914 C4 C5 H11 123.608
C5 C3 H8 111.914 C5 C3 H9 111.914
C5 C4 H10 123.608 H6 C2 H7 107.844
H8 C3 H9 107.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability