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

using model chemistry: MP2/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-35.669420
Energy at 298.15K-35.676194
HF Energy-35.259009
Nuclear repulsion energy84.647228
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/CEP-121G
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 3197 3120 13.62      
2 A 3147 3071 7.38      
3 A 3120 3045 20.19      
4 A 3044 2971 38.35      
5 A 3024 2951 23.87      
6 A 2968 2897 47.34      
7 A 1561 1524 8.79      
8 A 1512 1476 2.05      
9 A 1486 1450 1.82      
10 A 1355 1323 3.06      
11 A 1340 1308 5.16      
12 A 1296 1265 21.66      
13 A 1203 1174 1.36      
14 A 1152 1124 0.58      
15 A 1124 1097 0.75      
16 A 1035 1010 5.43      
17 A 1005 981 4.26      
18 A 906 884 3.94      
19 A 866 845 0.47      
20 A 854 834 1.76      
21 A 759 741 16.81      
22 A 678 662 43.02      
23 A 646 630 33.71      
24 A 612 598 3.82      
25 A 478 467 0.82      
26 A 383 374 1.36      
27 A 155 151 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 19452.5 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 18985.7 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/CEP-121G
ABC
0.21581 0.14440 0.09120

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.099 -1.305 0.221
H2 -0.088 -1.556 1.293
H3 0.097 -2.195 -0.393
C4 -1.433 -0.581 -0.183
H5 -2.271 -0.968 0.423
H6 -1.662 -0.769 -1.250
C7 0.097 1.330 0.084
H8 0.478 2.345 0.197
C9 -1.213 0.929 0.049
H10 -2.050 1.626 0.134
S11 1.336 -0.045 -0.090

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.10051.09871.57062.20732.21262.64573.69492.50263.52261.9345
H21.10051.81212.22162.42213.09213.13434.09112.99813.91432.4944
H31.09871.81212.23322.78852.42063.55674.59343.41604.41442.4997
C41.57062.22162.23321.10391.10762.46213.51451.54372.31372.8215
H52.20732.42212.78851.10391.79103.31654.30982.20392.61913.7578
H62.21263.09212.42061.10761.79103.04634.04572.18502.79333.2953
C72.64573.13433.55672.46213.31653.04631.08971.37002.16841.8589
H83.69494.09114.59343.51454.30984.04571.08972.20952.62892.5554
C92.50262.99813.41601.54372.20392.18501.37002.20951.09302.7321
H103.52263.91434.41442.31372.61912.79332.16842.62891.09303.7830
S111.93452.49442.49972.82153.75783.29531.85892.55542.73213.7830

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 110.008 C1 C4 H6 110.215
C1 C4 C9 106.940 C1 S11 C7 88.420
H2 C1 H3 110.971 H2 C1 C4 111.336
H2 C1 S11 107.339 H3 C1 C4 112.359
H3 C1 S11 107.798 C4 C1 S11 106.753
C4 C9 C7 115.218 C4 C9 H10 121.747
H5 C4 H6 108.160 H5 C4 C9 111.616
H6 C4 C9 109.910 C7 C9 H10 122.981
H8 C7 C9 127.500 H8 C7 S11 117.761
C9 C7 S11 114.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability