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

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-553.171999
Energy at 298.15K-553.178712
HF Energy-552.504220
Nuclear repulsion energy215.910503
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 3230 3069 15.01      
2 A1 3087 2934 0.33      
3 A1 1691 1607 5.26      
4 A1 1526 1450 7.49      
5 A1 1333 1266 0.00      
6 A1 1153 1096 0.19      
7 A1 982 933 0.16      
8 A1 746 709 2.18      
9 A1 527 501 0.23      
10 A2 3137 2981 0.00      
11 A2 1178 1119 0.00      
12 A2 997 947 0.00      
13 A2 922 876 0.00      
14 A2 360 342 0.00      
15 B1 3138 2982 17.48      
16 B1 1161 1103 16.65      
17 B1 935 888 0.05      
18 B1 673 639 61.06      
19 B1 49 46 4.93      
20 B2 3207 3047 2.56      
21 B2 3088 2934 57.56      
22 B2 1521 1446 0.19      
23 B2 1375 1306 3.54      
24 B2 1298 1233 10.48      
25 B2 999 949 5.96      
26 B2 835 794 0.53      
27 B2 666 633 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19906.1 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 18916.7 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
0.22128 0.15948 0.09603

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 1.246
C2 0.000 1.346 0.005
C3 0.000 -1.346 0.005
C4 0.000 0.669 -1.337
C5 0.000 -0.669 -1.337
H6 -0.887 1.973 0.133
H7 0.887 1.973 0.133
H8 0.887 -1.973 0.133
H9 -0.887 -1.973 0.133
H10 0.000 1.269 -2.244
H11 0.000 -1.269 -2.244

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83021.83022.66732.66732.43262.43262.43262.43263.71303.7130
C21.83022.69221.50322.42091.09401.09403.43813.43812.25073.4493
C31.83022.69222.42091.50323.43813.43811.09401.09403.44932.2507
C42.66731.50322.42091.33762.15612.15613.15083.15081.08782.1396
C52.66732.42091.50321.33763.15083.15082.15612.15612.13961.0878
H62.43261.09403.43812.15613.15081.77464.32683.94622.63334.1168
H72.43261.09403.43812.15613.15081.77463.94624.32682.63334.1168
H82.43263.43811.09403.15082.15614.32683.94621.77464.11682.6333
H92.43263.43811.09403.15082.15613.94624.32681.77464.11682.6333
H103.71302.25073.44931.08782.13962.63332.63334.11684.11682.5376
H113.71303.44932.25072.13961.08784.11684.11682.63332.63332.5376

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 105.873 S1 C2 H6 110.021
S1 C2 H7 110.021 S1 C3 C5 105.873
S1 C3 H8 110.021 S1 C3 H9 110.021
C2 S1 C3 94.696 C2 C4 C5 116.779
C2 C4 H10 119.747 C3 C5 C4 116.779
C3 C5 H11 119.747 C4 C2 H6 111.256
C4 C2 H7 111.256 C4 C5 H11 123.474
C5 C3 H8 111.256 C5 C3 H9 111.256
C5 C4 H10 123.474 H6 C2 H7 108.405
H8 C3 H9 108.405
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability