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All results from a given calculation for C4H6S (Thiophene, 2,3-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 C1 1A
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-552.770310
Energy at 298.15K-552.777136
Nuclear repulsion energy211.180992
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 A 3278 3136 7.50      
2 A 3218 3079 5.17      
3 A 3197 3059 10.85      
4 A 3124 2989 28.69      
5 A 3102 2968 11.53      
6 A 3046 2914 31.60      
7 A 1632 1561 5.90      
8 A 1562 1494 1.06      
9 A 1545 1479 2.23      
10 A 1377 1318 3.19      
11 A 1369 1310 3.05      
12 A 1332 1275 19.40      
13 A 1241 1188 0.92      
14 A 1182 1131 0.28      
15 A 1166 1116 0.44      
16 A 1053 1007 4.02      
17 A 1026 981 2.92      
18 A 927 887 2.49      
19 A 925 885 2.58      
20 A 877 839 0.91      
21 A 777 744 14.40      
22 A 700 670 53.11      
23 A 671 642 15.37      
24 A 619 592 2.20      
25 A 493 471 0.46      
26 A 404 386 1.93      
27 A 140 134 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 19990.3 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 19126.7 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 MP2/6-31G
ABC
0.21896 0.14634 0.09217

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.101 -1.301 0.199
H2 -0.077 -1.587 1.256
H3 0.091 -2.174 -0.432
C4 -1.424 -0.572 -0.166
H5 -2.247 -0.957 0.455
H6 -1.690 -0.764 -1.219
C7 0.090 1.322 0.079
H8 0.464 2.336 0.176
C9 -1.200 0.922 0.048
H10 -2.035 1.617 0.114
S11 1.331 -0.043 -0.082

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09511.09381.55392.18862.19612.63253.68072.48453.50251.9269
H21.09511.79442.20522.39693.06623.14194.10433.00213.92482.4810
H31.09381.79442.22062.78092.40393.53314.56633.38854.38122.4909
C41.55392.20522.22061.10011.10342.43723.48381.52602.29052.8068
H52.18862.39692.78091.10011.77533.28554.27372.18902.60503.7317
H62.19613.06622.40391.10341.77533.03364.02382.16512.75093.3074
C72.63253.14193.53312.43723.28553.03361.08511.35082.14651.8514
H83.68074.10434.56633.48384.27374.02381.08512.18672.60102.5452
C92.48453.00213.38851.52602.18902.16511.35082.18671.08932.7116
H103.50253.92484.38122.29052.60502.75092.14652.60101.08933.7589
S111.92692.48102.49092.80683.73173.30741.85142.54522.71163.7589

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 109.924 C1 C4 H6 110.325
C1 C4 C9 107.541 C1 S11 C7 88.312
H2 C1 H3 110.133 H2 C1 C4 111.532
H2 C1 S11 107.134 H3 C1 C4 112.859
H3 C1 S11 107.900 C4 C1 S11 107.002
C4 C9 C7 115.678 C4 C9 H10 121.386
H5 C4 H6 107.350 H5 C4 C9 111.905
H6 C4 C9 109.812 C7 C9 H10 122.853
H8 C7 C9 127.376 H8 C7 S11 117.788
C9 C7 S11 114.834
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability