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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-553.127782
Energy at 298.15K-553.134600
HF Energy-552.454925
Nuclear repulsion energy215.596493
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 MP3/6-31G*
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 3061 15.63      
2 A1 3121 2929 0.16      
3 A1 1766 1658 4.76      
4 A1 1559 1464 5.82      
5 A1 1356 1273 0.05      
6 A1 1183 1111 0.47      
7 A1 993 932 0.08      
8 A1 751 705 1.88      
9 A1 533 500 0.12      
10 A2 3162 2968 0.00      
11 A2 1191 1118 0.00      
12 A2 1012 950 0.00      
13 A2 952 894 0.00      
14 A2 373 350 0.00      
15 B1 3164 2970 19.60      
16 B1 1176 1104 10.68      
17 B1 958 899 0.39      
18 B1 696 653 45.90      
19 B1 81 76 4.57      
20 B2 3238 3039 2.63      
21 B2 3121 2929 53.61      
22 B2 1556 1460 0.03      
23 B2 1411 1324 2.69      
24 B2 1320 1239 8.11      
25 B2 1013 951 5.28      
26 B2 849 797 0.64      
27 B2 673 632 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20233.5 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 18991.1 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 MP3/6-31G*
ABC
0.22085 0.15880 0.09569

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.249
C2 0.000 1.347 0.003
C3 0.000 -1.347 0.003
C4 0.000 0.666 -1.339
C5 0.000 -0.666 -1.339
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 1.267 -2.245
H11 0.000 -1.267 -2.245

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83471.83472.67292.67292.43702.43702.43702.43703.71663.7166
C21.83472.69341.50512.41951.09431.09433.44233.44232.24953.4472
C31.83472.69342.41951.50513.44233.44231.09431.09433.44722.2495
C42.67291.50512.41951.33252.16092.16093.15263.15261.08662.1345
C52.67292.41951.50511.33253.15263.15262.16092.16092.13451.0866
H62.43701.09433.44232.16093.15261.76984.33263.95472.63494.1184
H72.43701.09433.44232.16093.15261.76983.95474.33262.63494.1184
H82.43703.44231.09433.15262.16094.33263.95471.76984.11842.6349
H92.43703.44231.09433.15262.16093.95474.33261.76984.11842.6349
H103.71662.24953.44721.08662.13452.63492.63494.11844.11842.5333
H113.71663.44722.24952.13451.08664.11844.11842.63492.63492.5333

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 105.898 S1 C2 H6 110.027
S1 C2 H7 110.027 S1 C3 C5 105.898
S1 C3 H8 110.027 S1 C3 H9 110.027
C2 S1 C3 94.447 C2 C4 C5 116.879
C2 C4 H10 119.578 C3 C5 C4 116.879
C3 C5 H11 119.578 C4 C2 H6 111.490
C4 C2 H7 111.490 C4 C5 H11 123.543
C5 C3 H8 111.490 C5 C3 H9 111.490
C5 C4 H10 123.543 H6 C2 H7 107.916
H8 C3 H9 107.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability