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

using model chemistry: MP3=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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-553.157080
Energy at 298.15K-553.163905
HF Energy-552.455023
Nuclear repulsion energy215.782719
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 MP3=FULL/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 3261 3060 15.49      
2 A1 3121 2928 0.18      
3 A1 1769 1660 4.72      
4 A1 1559 1463 5.88      
5 A1 1357 1273 0.03      
6 A1 1185 1111 0.46      
7 A1 993 932 0.08      
8 A1 752 706 1.85      
9 A1 534 501 0.14      
10 A2 3163 2968 0.00      
11 A2 1194 1120 0.00      
12 A2 1012 949 0.00      
13 A2 958 899 0.00      
14 A2 374 351 0.00      
15 B1 3164 2969 19.31      
16 B1 1178 1105 10.70      
17 B1 957 898 0.41      
18 B1 699 656 45.84      
19 B1 81 76 4.55      
20 B2 3238 3039 2.61      
21 B2 3121 2929 53.41      
22 B2 1555 1459 0.02      
23 B2 1412 1325 2.75      
24 B2 1321 1240 7.97      
25 B2 1014 952 5.32      
26 B2 850 798 0.59      
27 B2 675 633 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20247.6 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 18998.3 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 MP3=FULL/6-31G*
ABC
0.22134 0.15903 0.09586

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.248
C2 0.000 1.347 0.004
C3 0.000 -1.347 0.004
C4 0.000 0.666 -1.338
C5 0.000 -0.666 -1.338
H6 -0.885 1.977 0.133
H7 0.885 1.977 0.133
H8 0.885 -1.977 0.133
H9 -0.885 -1.977 0.133
H10 0.000 1.268 -2.243
H11 0.000 -1.268 -2.243

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83341.83342.67012.67012.43612.43612.43612.43613.71423.7142
C21.83342.69371.50462.41921.09431.09433.44193.44192.24853.4476
C31.83342.69372.41921.50463.44193.44191.09431.09433.44762.2485
C42.67011.50462.41921.33222.15992.15993.15153.15151.08712.1353
C52.67012.41921.50461.33223.15153.15152.15992.15992.13531.0871
H62.43611.09433.44192.15993.15151.77084.33203.95352.63314.1180
H72.43611.09433.44192.15993.15151.77083.95354.33202.63314.1180
H82.43613.44191.09433.15152.15994.33203.95351.77084.11802.6331
H92.43613.44191.09433.15152.15993.95354.33201.77084.11802.6331
H103.71422.24853.44761.08712.13532.63312.63314.11804.11802.5356
H113.71423.44762.24852.13531.08714.11804.11802.63312.63312.5356

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 105.825 S1 C2 H6 110.048
S1 C2 H7 110.048 S1 C3 C5 105.825
S1 C3 H8 110.048 S1 C3 H9 110.048
C2 S1 C3 94.548 C2 C4 C5 116.901
C2 C4 H10 119.491 C3 C5 C4 116.901
C3 C5 H11 119.491 C4 C2 H6 111.450
C4 C2 H7 111.450 C4 C5 H11 123.608
C5 C3 H8 111.450 C5 C3 H9 111.450
C5 C4 H10 123.608 H6 C2 H7 108.023
H8 C3 H9 108.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability