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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-553.135564
Energy at 298.15K-553.142342
HF Energy-552.464919
Nuclear repulsion energy216.122189
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 MP2/6-31G**
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 3289 3080 13.88      
2 A1 3135 2936 0.15      
3 A1 1723 1613 5.48      
4 A1 1550 1452 5.67      
5 A1 1344 1259 0.49      
6 A1 1168 1094 0.44      
7 A1 992 929 0.03      
8 A1 752 704 1.86      
9 A1 530 496 0.17      
10 A2 3187 2985 0.00      
11 A2 1184 1109 0.00      
12 A2 1007 943 0.00      
13 A2 947 887 0.00      
14 A2 364 340 0.00      
15 B1 3188 2986 18.85      
16 B1 1168 1094 10.60      
17 B1 949 889 0.28      
18 B1 690 646 40.79      
19 B1 66 61 4.46      
20 B2 3266 3058 2.01      
21 B2 3136 2937 55.43      
22 B2 1546 1448 0.60      
23 B2 1398 1310 2.41      
24 B2 1304 1221 7.59      
25 B2 1011 947 4.71      
26 B2 841 788 0.67      
27 B2 671 628 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20202.0 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 18919.2 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 MP2/6-31G**
ABC
0.22170 0.15973 0.09616

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.246
C2 0.000 1.343 0.004
C3 0.000 -1.343 0.004
C4 0.000 0.668 -1.335
C5 0.000 -0.668 -1.335
H6 -0.882 1.972 0.133
H7 0.882 1.972 0.133
H8 0.882 -1.972 0.133
H9 -0.882 -1.972 0.133
H10 0.000 1.264 -2.239
H11 0.000 -1.264 -2.239

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82921.82922.66612.66612.43002.43002.43002.43003.70703.7070
C21.82922.68591.49932.41631.09101.09103.43263.43262.24433.4389
C31.82922.68592.41631.49933.43263.43261.09101.09103.43892.2443
C42.66611.49932.41631.33692.15232.15233.14723.14721.08242.1332
C52.66612.41631.49931.33693.14723.14722.15232.15232.13321.0824
H62.43001.09103.43262.15233.14721.76404.32043.94392.62794.1079
H72.43001.09103.43262.15233.14721.76403.94394.32042.62794.1079
H82.43003.43261.09103.14722.15234.32043.94391.76404.10792.6279
H92.43003.43261.09103.14722.15233.94394.32041.76404.10792.6279
H103.70702.24433.43891.08242.13322.62792.62794.10794.10792.5276
H113.70703.43892.24432.13321.08244.10794.10792.62792.62792.5276

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 106.027 S1 C2 H6 110.058
S1 C2 H7 110.058 S1 C3 C5 106.027
S1 C3 H8 110.058 S1 C3 H9 110.058
C2 S1 C3 94.473 C2 C4 C5 116.737
C2 C4 H10 119.892 C3 C5 C4 116.737
C3 C5 H11 119.892 C4 C2 H6 111.410
C4 C2 H7 111.410 C4 C5 H11 123.371
C5 C3 H8 111.410 C5 C3 H9 111.410
C5 C4 H10 123.371 H6 C2 H7 107.888
H8 C3 H9 107.888
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability