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All results from a given calculation for C5H6S (Thiophene, 3-methyl-)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-41.572819
Energy at 298.15K-41.578878
HF Energy-40.841532
Nuclear repulsion energy107.050088
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-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' 3269 3104 1.65      
2 A' 3264 3099 0.78      
3 A' 3225 3062 3.34      
4 A' 3187 3026 19.13      
5 A' 3084 2928 38.33      
6 A' 1588 1507 1.69      
7 A' 1523 1446 10.95      
8 A' 1464 1390 6.12      
9 A' 1448 1375 1.79      
10 A' 1425 1352 1.69      
11 A' 1254 1191 4.09      
12 A' 1195 1134 2.21      
13 A' 1099 1044 5.77      
14 A' 1022 970 7.78      
15 A' 949 901 5.53      
16 A' 895 850 11.23      
17 A' 864 820 10.61      
18 A' 663 629 0.28      
19 A' 542 514 0.33      
20 A' 308 292 0.78      
21 A" 3175 3014 23.45      
22 A" 1505 1429 8.26      
23 A" 1065 1011 2.13      
24 A" 854 811 2.98      
25 A" 758 720 123.32      
26 A" 650 617 1.64      
27 A" 565 536 10.32      
28 A" 450 427 0.32      
29 A" 230 219 4.72      
30 A" 102 97 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 20810.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19757.0 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-31G*
ABC
0.22616 0.07949 0.05949

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.200 0.212 0.000
C2 -1.170 -0.157 0.000
C3 0.000 0.695 0.000
C4 1.183 -0.064 0.000
H5 -1.528 -2.378 0.000
C6 -0.849 -1.522 0.000
S7 0.869 -1.772 0.000
H8 0.976 2.637 0.000
H9 -0.574 2.594 0.893
H10 -0.574 2.594 -0.893
C11 -0.044 2.216 0.000
H12 2.211 0.304 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 C4 H5 C6 S7 H8 H9 H10 C11 H12
H11.09432.25263.39472.67632.19883.65493.99563.01893.01892.94344.4126
C21.09431.44782.35532.24921.40212.60103.52342.95332.95332.62743.4130
C32.25261.44781.40543.43172.37412.61532.17352.17552.17551.52242.2456
C43.39472.35531.40543.56432.50141.73682.70893.30853.30852.58971.0920
H52.67632.24923.43173.56431.09222.47225.60525.14065.14064.82804.6015
C62.19881.40212.37412.50141.09221.73614.54204.22074.22073.82443.5639
S73.65492.60102.61531.73682.47221.73614.41034.68374.68374.09172.4720
H83.99563.52342.17352.70895.60524.54204.41031.78901.78901.10332.6403
H93.01892.95332.17553.30855.14064.22074.68371.78901.78691.10483.7145
H103.01892.95332.17553.30855.14064.22074.68371.78901.78691.10483.7145
C112.94342.62741.52242.58974.82803.82444.09171.10331.10481.10482.9575
H124.41263.41302.24561.09204.60153.56392.47202.64033.71453.71452.9575

picture of Thiophene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 124.186 H1 C2 C6 122.997
C2 C3 C4 111.271 C2 C3 C11 124.386
C2 C6 H5 128.340 C2 C6 S7 111.511
C3 C2 C6 112.817 C3 C4 S7 112.248
C3 C4 H12 127.656 C3 C11 H8 110.735
C3 C11 H9 110.803 C3 C11 H10 110.803
C4 C3 C11 124.344 C4 S7 C6 92.153
H5 C6 S7 120.149 S7 C4 H12 120.096
H8 C11 H9 108.225 H8 C11 H10 108.225
H9 C11 H10 107.943
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability