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All results from a given calculation for C5H6S (Thiophene, 2-methyl-)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-591.249294
Energy at 298.15K 
HF Energy-590.407467
Nuclear repulsion energy272.716600
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/TZVP
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 3296 3124 0.94      
2 A 3262 3092 3.65      
3 A 3245 3076 5.83      
4 A 3177 3011 11.14      
5 A 3082 2921 28.46      
6 A 1578 1496 0.73      
7 A 1521 1441 4.83      
8 A 1483 1406 9.51      
9 A 1439 1364 0.24      
10 A 1400 1327 1.25      
11 A 1277 1211 14.31      
12 A 1207 1144 10.87      
13 A 1115 1056 3.11      
14 A 1084 1028 3.50      
15 A 1003 951 2.21      
16 A 877 831 13.72      
17 A 759 720 0.17      
18 A 685 649 1.93      
19 A 554 525 0.77      
20 A 308 292 0.67      
21 A 3159 2994 11.48      
22 A 1479 1402 9.01      
23 A 1059 1004 0.15      
24 A 732 694 11.06      
25 A 688 652 23.23      
26 A 614 582 60.11      
27 A 421 400 4.11      
28 A 242 230 6.23      
29 A 100 95 0.13      
30 A 173i 164i 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 20334.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 19275.2 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/TZVP
ABC
0.17519 0.10405 0.06609

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.396 -1.539 0.000
C2 -1.443 -1.027 0.000
H3 -2.143 1.075 0.000
C4 -1.304 0.391 0.000
C5 0.000 0.807 0.000
H6 -0.043 -2.728 0.000
C7 -0.236 -1.667 0.000
S8 1.088 -0.552 0.000
H9 -0.318 2.904 0.000
H10 1.129 2.412 0.883
H11 1.129 2.412 -0.883
C12 0.521 2.210 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08122.62632.21713.35322.63622.16353.62134.90465.36805.36804.7500
C21.08122.21571.42492.33412.20331.36632.57594.08904.38474.38473.7865
H32.62632.21571.08222.15964.34483.34013.61782.58333.64323.64322.8958
C42.21711.42491.08221.36923.36482.31892.57192.69963.28433.28432.5771
C53.35322.33412.15961.36923.53602.48561.74112.12082.15192.15191.4963
H62.63622.20334.34483.36483.53601.07882.45335.63935.34625.34624.9704
C72.16351.36633.34012.31892.48561.07881.73154.57184.39144.39143.9501
S83.62132.57593.61782.57191.74112.45331.73153.73113.09313.09312.8191
H94.90464.08902.58332.69962.12085.63934.57183.73111.76541.76541.0896
H105.36804.38473.64323.28432.15195.34624.39143.09311.76541.76651.0910
H115.36804.38473.64323.28432.15195.34624.39143.09311.76541.76651.0910
C124.75003.78652.89582.57711.49634.97043.95012.81911.08961.09101.0910

picture of Thiophene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 123.835 H1 C2 C7 123.829
C2 C4 H3 123.624 C2 C4 C5 113.289
C2 C7 H6 128.222 C2 C7 S8 111.972
H3 C4 C5 123.087 C4 C2 C7 112.336
C4 C5 S8 110.993 C4 C5 C12 128.092
C5 S8 C7 91.411 C5 C12 H9 109.187
C5 C12 H10 111.595 C5 C12 H11 111.595
H6 C7 S8 119.806 S8 C5 C12 120.915
H9 C12 H10 108.114 H9 C12 H11 108.114
H10 C12 H11 108.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability