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All results from a given calculation for C4H6S (Thiophene, 2,3-dihydro-)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-553.267016
Energy at 298.15K-553.273967
HF Energy-552.477587
Nuclear repulsion energy217.568350
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(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 A 3285 3103 4.10      
2 A 3258 3077 0.47      
3 A 3207 3029 3.82      
4 A 3158 2982 12.99      
5 A 3127 2953 10.82      
6 A 3079 2908 22.23      
7 A 1622 1532 7.61      
8 A 1506 1423 0.76      
9 A 1490 1407 2.48      
10 A 1349 1274 0.47      
11 A 1333 1259 3.24      
12 A 1291 1219 15.62      
13 A 1210 1143 2.01      
14 A 1158 1094 0.43      
15 A 1123 1061 1.02      
16 A 1036 979 3.92      
17 A 1017 960 2.53      
18 A 945 893 2.58      
19 A 927 875 0.65      
20 A 874 826 1.07      
21 A 809 764 22.07      
22 A 709 669 7.04      
23 A 701 662 28.78      
24 A 660 624 12.49      
25 A 496 469 0.49      
26 A 408 385 2.22      
27 A 189 178 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 19983.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 18874.2 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(2df,p)
ABC
0.23074 0.15702 0.09912

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.066 -1.246 0.234
H2 -0.073 -1.445 1.308
H3 0.144 -2.170 -0.302
C4 -1.374 -0.574 -0.196
H5 -2.221 -0.996 0.349
H6 -1.556 -0.736 -1.266
C7 0.109 1.273 0.089
H8 0.481 2.284 0.184
C9 -1.177 0.896 0.066
H10 -2.000 1.595 0.137
S11 1.267 -0.039 -0.098

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09181.08921.53172.17202.17492.52983.57302.41883.43811.8287
H21.09181.77962.17072.39453.05392.98483.93422.87083.78492.3973
H31.08921.77962.20522.71972.42403.46584.49353.35884.35512.4171
C41.53172.17072.20521.09231.09732.38603.42851.50632.28222.6958
H52.17202.39452.71971.09231.76603.26314.25322.17982.60943.6440
H62.17493.05392.42401.09731.76602.94003.92062.14012.75643.1331
C72.52982.98483.46582.38603.26312.94001.08141.34012.13381.7599
H83.57303.93424.49353.42854.25323.92061.08142.16542.57512.4688
C92.41882.87083.35881.50632.17982.14011.34012.16541.08232.6212
H103.43813.78494.35512.28222.60942.75642.13382.57511.08233.6600
S111.82872.39732.41712.69583.64403.13311.75992.46882.62123.6600

picture of Thiophene, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 110.621 C1 C4 H6 110.551
C1 C4 C9 105.529 C1 S11 C7 89.631
H2 C1 H3 109.363 H2 C1 C4 110.543
H2 C1 S11 107.656 H3 C1 C4 113.494
H3 C1 S11 109.230 C4 C1 S11 106.351
C4 C9 C7 113.785 C4 C9 H10 122.845
H5 C4 H6 107.520 H5 C4 C9 113.077
H6 C4 C9 109.568 C7 C9 H10 123.142
H8 C7 C9 126.491 H8 C7 S11 118.703
C9 C7 S11 114.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability